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Irreligion or nonreligion is the absence or rejection of religion, or indifference to it.[1] According to the Pew Research Center's 2012 global study of 230 countries and territories, 16% of the world's population is not affiliated with any religion.[2] The population of the religiously unaffiliated, sometimes referred to as "nones", grew significantly in recent years, though its future growth is uncertain.[3] Objective irreligion is difficult to isolate because many of the global "nones" actually hold religious beliefs and some engage in religious practices.[4]

Irreligion takes many forms, ranging from the casual and unaware to full-fledged philosophies such as secular humanism. Other examples are atheism, agnosticism, and antitheism. Social scientists[] tend to define irreligion as a purely naturalist worldview that excludes a belief in anything supernatural. The broadest and loosest definition, serving as an upper limit, is the lack of religious identification, though many non-identifiers express metaphysical and even religious beliefs. The narrowest and strictest is subscribing to positive atheism. Measurement of irreligiosity requires great cultural sensitivity, especially outside the West, where the concepts of "religion" or "the secular" are not rooted in local culture.[5]


The term irreligion is a combination of the noun religion and the ir- form of the prefix in-, signifying "not" (similar to irrelevant). It was first attested in French as irréligion in 1527, then in English as irreligion in 1598. It was borrowed into Dutch as irreligie in the 17th century, though it is not certain from which language.[6]


  • Agnostic atheism is a philosophical position that encompasses both atheism and agnosticism. Agnostic atheists are atheistic because they do not hold a belief in the existence of any deity and agnostic because they claim that the existence of a deity is either unknowable in principle or currently unknown in fact.[7]
  • Agnosticism is the view that the existence of God, of the divine or the supernatural is unknown or unknowable.[8]
  • Antireligion is opposition or rejection of religion of any kind.[9]
  • Apatheism is the attitude of apathy or indifference towards the existence or non-existence of god(s).[9]
  • Atheism is the lack of belief that any deities exist or, in a narrower sense, positive atheism is specifically the position that there are no deities. There are ranges from Negative and positive atheism.[10]
  • Deism is the philosophical position that rejects revelation as a source of religious knowledge and asserts that reason and observation of the natural world are sufficient to establish the existence of a Supreme Being or creator of the universe.[11]
  • Freethought holds that positions regarding truth should be formed on the basis of logic, reason, and empiricism, rather than authority, tradition, revelation, or other dogma.[9]
  • Naturalism is the idea or belief that only natural (as opposed to supernatural or spiritual) laws and forces operate in the universe.[12]
  • Secular humanism is a system of thought that prioritizes human rather than divine matters.[13] It is also viewed as a humanistic philosophy viewed as a nontheistic religion antagonistic to traditional religion.[14]
  • Secularism is overwhelmingly used to describe a political conviction in favour of minimizing religion in the public sphere, that may be advocated regardless of personal religiosity. Yet it is sometimes, especially in the United States, also a synonym for naturalism or atheism.[15]
  • "Spiritual but not religious" is a designation coined by Robert C. Fuller for people who reject traditional or organized religion but have strong metaphysical beliefs. The SBNR may be included under the definition of nonreligion,[16] but are sometimes classified as a wholly distinct group.[17]
  • Theological noncognitivism is the argument that religious language - specifically, words such as God - are not cognitively meaningful. It is sometimes considered as synonymous with ignosticism.

Human rights

In 1993, the UN's human rights committee declared that article 18 of the International Covenant on Civil and Political Rights "protects theistic, non-theistic and atheistic beliefs, as well as the right not to profess any religion or belief."[18] The committee further stated that "the freedom to have or to adopt a religion or belief necessarily entails the freedom to choose a religion or belief, including the right to replace one's current religion or belief with another or to adopt atheistic views." Signatories to the convention are barred from "the use of threat of physical force or penal sanctions to compel believers or non-believers" to recant their beliefs or convert.[19][20]

Most democracies protect the freedom of religion, and it is largely implied in respective legal systems that those who do not believe or observe any religion are allowed freedom of thought.

A noted exception to ambiguity, explicitly allowing non-religion, is Article 36 of the Constitution of the People's Republic of China (as adopted in 1982), which states that "No state organ, public organization or individual may compel citizens to believe in, or not to believe in, any religion; nor may they discriminate against citizens who believe in, or do not believe in, any religion."[21] Article 46 of China's 1978 Constitution was even more explicit, stating that "Citizens enjoy freedom to believe in religion and freedom not to believe in religion and to propagate atheism."[22]


Although 11 countries listed below have nonreligious majorities, it does not necessary correlate with non-identification. For example, 58% of the Swedish population identify with the Lutheran Church.[24] Also, though Scandinavian countries have among the highest measures of nonreligiosity and even atheism in Europe, 47% of atheists who live in those countries are still formally members of the national churches.[25]

Determining objective irreligion, as part of societal or individual levels of secularity and religiosity, requires cultural sensitivity from researchers. This is especially so outside the West, where the Western Christian concepts of "religious" and "secular" are not rooted in local civilization. Many East Asians identify as "without religion" (wú z?ngjiào in Chinese, mu sh?ky? in Japanese, mu jong-gyo in Korean), but "religion" in that context refers only to Buddhism or Christianity. Most of the people "without religion" practice Shinto and other folk religions. In the Muslim world, those who claim to be "not religious" mostly imply not strictly observing Islam, and in Israel, being "secular" means not strictly observing Orthodox Judaism. Vice versa, many American Jews share the worldviews of nonreligious people though affiliated with a Jewish denomination, and in Russia, growing identification with Eastern Orthodoxy is mainly motivated by cultural and nationalist considerations, without much concrete belief.[26]

A Pew 2015 global projection study for religion and nonreligion, projects that between 2010 and 2050, there will be some initial increases of the unaffiliated followed by a decline by 2050 due to lower global fertility rates among this demographic.[27] Sociologist Phil Zuckerman's global studies on atheism have indicated that global atheism may be in decline due to irreligious countries having the lowest birth rates in the world and religious countries having higher birth rates in general.[28] Since religion and fertility are positively related and vice versa, non-religious identity is expected to decline as a proportion of the global population throughout the 21st century.[29] By 2060, according to projections, the number of unaffiliated will increase by over 35 million, but the percentage will decrease to 13% because the total population will grow faster.[30][31]

According to Pew Research Center's 2012 global study of 230 countries and territories, 16% of the world's population is not affiliated with a religion, while 84% are affiliated.[2] A 2012 Worldwide Independent Network/Gallup International Association report on a poll from 57 countries reported that 59% of the world's population identified as religious person, 23% as not religious person, 13% as "convinced atheists", and also a 9% decrease in identification as "religious" when compared to the 2005 average from 39 countries.[32] Their follow-up report, based on a poll in 2015, found that 63% of the globe identified as religious person, 22% as not religious person, and 11% as "convinced atheists".[33] Their 2017 report found that 62% of the globe identified as religious person, 25% as not religious person, and 9% as "convinced atheists".[34] However, researchers have advised caution with the WIN/Gallup International figures since other surveys which use the same wording, have conducted many waves for decades, and have a bigger sample size, such as World Values Survey; have consistently reached lower figures for the number of atheists worldwide.[35]

Being nonreligious is not necessarily equivalent to being an atheist or agnostic. Pew Research Center's global study from 2012 noted that many of the nonreligious actually have some religious beliefs. For example, they observed that "belief in God or a higher power is shared by 7% of Chinese unaffiliated adults, 30% of French unaffiliated adults and 68% of unaffiliated U.S. adults."[36] Out of the global nonreligious population, 76% reside in Asia and the Pacific, while the remainder reside in Europe (12%), North America (5%), Latin America and the Caribbean (4%), sub-Saharan Africa (2%) and the Middle East and North Africa (less than 1%).[36]

The term "nones" is sometimes used in the U.S. to refer to those who are unaffiliated with any organized religion. This use derives from surveys of religious affiliation, in which "None" (or "None of the above") is typically the last choice. Since this status refers to lack of organizational affiliation rather than lack of personal belief, it is a more specific concept than irreligion. A 2015 Gallup poll concluded that in the U.S. "nones" were the only "religious" group that was growing as a percentage of the population.[37]

The WIN-Gallup International Association (WIN/GIA) poll results below are the totals for "not a religious person" and "a convinced atheist" combined. Keysar et al. have advised caution with WIN/Gallup International figures since more extensive surveys which have used the same wording for decades and have bigger sample sizes, have consistently reached lower figures. For example, the WIN/GIA numbers from China were overestimated which in turn inflated global totals.[38]

Country or region WIN/GIA


 Afghanistan (details) 9% 15%
 Albania (details) 39% 8%
 Argentina 34% 20% 26% 13% 4–8%
 Armenia 6% 5% 5% 34%
 Australia (details) 63% 58% 58% 24–25%
 Austria 53% 54% 53% 12% 18–26%
 Azerbaijan (details) 64% 54% 51%
 Bangladesh (details) 19% 5%
 Belarus 48% 17%
 Belgium (details) 64% 48% 34% 35% 42–43%
 Bosnia and Herzegovina 22% 32% 29%
 Brazil (details) 17% 18% 14%
 Bulgaria (details) 39% 39% 30% 30% 34–40%
 Cameroon 17%
 Canada (details) 57% 53% 49% 26% 19–30%
 Chile 34%
 China (details) 90% 90% 77% 93% 8–14%
 Colombia 14% 17% 15%
 DR Congo 17%
 Croatia (details) 13% 7%
 Cuba 7%
 Czech Republic (details) 72% 75% 78% 64% 54–61%
 Denmark (details) 61% 52% 10% 43–80%
 Dominican Republic 7%
 Ecuador 18% 28% 29%
 Estonia (details) 60% 76% 49%
 Fiji 8% 7% 6%
 Finland (details) 55% 42% 44% 12% 28–60%
 France (details) 50% 53% 63% 43% 43–54%
 Georgia (details) 7% 13%
 Germany (details) 60% 59% 48% 25% 41–49%
 Ghana (details) 1% 2%
 Greece 22% 21% 4% 16%
 Hong Kong 63% 70% 60%
 Hungary 43% 32–46%
 Iceland (details) 49% 44% 41% 4% 16–23%
 India (details) 5% 23% 16% 7% 9.11%
 Indonesia (details) 30% 15%
 Iran (details) 20% 1%
 Iraq (details) 34% 9%
 Ireland (details) 56% 51% 54% 7%
 Israel (details) 58% 65% 15–37%
 Italy (details) 26% 24% 23% 18% 6–15%
 Japan (details) 60% 62% 62% 52% 64–65%
 Kazakhstan (details) 11–12%
 Kenya (details) 9% 11%
 Kosovo 3% 8%
 Kyrgyzstan 7%
 Latvia 52% 50% 41% 20–29%
 Lebanon (details) 28% 18% 35%
 Lithuania 40% 23% 19% 13%
 Luxembourg 30%
 Malaysia 23% 13%
 Malta 1%
 Mexico (details) 36% 28%
 Moldova 10%
 Mongolia 29% 9%
 Morocco (details) 5%
 Netherlands (details) 66% 56% 55% 39–44%
 New Zealand (details) 20–22%
 Nigeria (details) 2% 16% 5% 1%
 North Korea 15%
 North Macedonia 11% 10% 9%
 Norway (details) 62% 31–72%
 Pakistan (details) 6% 11% 10%
 Palestinian territories 35% 19% 33%
 Panama 13%
 Papua New Guinea 5% 4%
 Peru (details) 23% 13% 11% 5%
 Philippines (details) 9% 22% 11%
 Poland (details) 10% 12% 14% 5%
 Portugal 38% 37% 11% 4–9%
 Puerto Rico 11%
 Romania (details) 9% 17% 7% 2%
 Russia (details) 30% 23% 32% 48% 24–48%
 Saudi Arabia (details) 24%
 Serbia 21% 21% 19%
 Singapore (details) 13%
 Slovakia 23% 10–28%
 Slovenia 53% 30% 35–38%
 South Africa (details) 32% 11%
 South Korea (details) 60% 55% 46% 37% 30–52%
 South Sudan 16%
 Spain (details) 57% 55% 47% 16% 15–24%
 Sweden (details) 73% 76% 58% 25% 46–85%
  Switzerland (details) 58% 47% 17–27%
 Taiwan 24%
 Tanzania 2%
 Thailand 2% 2%
 Tunisia 33%
 Turkey (details) 15% 75% (anomolous) 3%
 Uganda (details) 1%
 Ukraine 42% 24% 23% 42% 20%
 United Kingdom (details) 69% 66% 31–44%
 United States (details) 39% 39% 35% 20% 3–9%
 Uruguay (details) 12%
 Uzbekistan 18%
 Venezuela 2% 27%
 Vietnam 63% 54% 65% 46% 81%

Historical trends

According to political/social scientist Ronald F. Inglehart, "influential thinkers from Karl Marx to Max Weber to Émile Durkheim predicted that the spread of scientific knowledge would dispel religion throughout the world", but religion continued to prosper in most places during the 19th and 20th centuries.[45] Inglehart and Pippa Norris argue faith is "more emotional than cognitive", and advance an alternative thesis ("existential security"). They postulate that rather than knowledge or ignorance of scientific learning determining religiosity, it is how weak/vulnerable a society is that does this – religious values being more important the more poor and chaotic a society is, and less so as they become more rich and secure. As need for the support of religion diminishes, there is less willingness to "accept its constraints, including keeping women in the kitchen and gay people in the closet".[46]


In a study of religious trends in 49 countries from 1981 to 2019, Inglehart and Norris found an increase in religiosity from 1981 to 2007 (when a survey asking respondents "how important God was in their lives" on a scale of one to ten found people in 33 of the 49 countries more religious), but a sharp reversal of the trend from about 2007 to 2019, (when 43 out of 49 countries studied became less religious).[45] The 1981-2007 increase occurred in most former communist countries and developing countries, but also in some high-income countries; the 2007 to 2019 reversal appeared across most of the world. The United States being a dramatic example – with the mean rating of importance of religion dropping from 8.2 to 4.6 – India being a major exception.

Inglehart and Norris speculate that the decline in religiosity comes from a decline in the social need for traditional gender and sexual norms, ("virtually all world religions instilled" pro-fertility norms such as "producing as many children as possible and discouraged divorce, abortion, homosexuality, contraception, and any sexual behavior not linked to reproduction" in their adherents for centuries) as life expectancy rose and infant mortality dropped. They also argue that the idea that religion was necessary to prevent a collapse of social cohesion and public morality, was belied by lower levels of corruption and murder in less religious countries. They argue that both of these trends are based on the theory that as societies develop, survival becomes more secure: starvation, once pervasive, becomes uncommon; life expectancy increases; murder and other forms of violence diminish. And as this level of security rises, there is less social/economic need for high birthrates that religion encourages, and less emotional need for the comfort of religious belief.[45] Change in acceptance of "divorce, abortion, and homosexuality" has been measured by the World Values Survey, and shown to have grown throughout the world outside of Muslim-majority countries.[47][45]

See also


  1. ^ Colin Campbell (1998), "Irreligion", Encyclopedia of Religion and Society, ISBN 9780761989561, retrieved
  2. ^ a b Pew Forum on Religion & Public Life (18 December 2012). "The Global Religious Landscape". Retrieved 2012.
  3. ^ Lipka, Michael (April 2, 2015). "7 Key Changes in the Global Religious Landscape". Pew Research Center.
  4. ^ "Religiously Unaffiliated". The Global Religious Landscape. Pew Research Center: Religion & Public Life. December 18, 2012. The religiously unaffiliated include atheists, agnostics and people who do not identify with any particular religion in surveys. However, many of the religiously unaffiliated have some religious beliefs...Some of the unaffiliated also engage in certain kinds of religious practices.
  5. ^ Zuckerman, Phil; Galen, Luke W.; Pasquale, Frank L. (2016). "Secularity Around the World". In: The Nonreligious: Understanding Secular People and Societies. New York: Oxford University Press. pp. 6-8, 13-15, 32-34.
  6. ^ "Irreligie". Instituut voor Nederlandse Lexicologie. Instituut voor de Nederlandse Taal. 2007. Retrieved 2019.
  7. ^ Harrison, Alexander James (1894). The Ascent of Faith: or, the Grounds of Certainty in Science and Religion. London: Hodder and Stroughton. p. 21. OCLC 7234849. OL 21834002M. Let Agnostic Theism stand for that kind of Agnosticism which admits a Divine existence; Agnostic Atheism for that kind of Agnosticism which thinks it does not.
  8. ^ Hepburn, Ronald W. (2005) [1967]. "Agnosticism". In Donald M. Borchert (ed.). The Encyclopedia of Philosophy. 1 (2nd ed.). MacMillan Reference USA (Gale). p. 92. ISBN 978-0-02-865780-6. In the most general use of the term, agnosticism is the view that we do not know whether there is a God or not. (page 56 in 1967 edition)
  9. ^ a b c A Dictionary of Atheism. Oxford University Press. 2016. ISBN 9780191816819.
  10. ^ J.J.C. Smart (2017). "Atheism and Agnosticism". Stanford Encyclopedia of Philosophy. Metaphysics Research Lab, Stanford University.
  11. ^ "Deism". Encyclopædia Britannica. 2012.
  12. ^ Oxford English Dictionary Online naturalism
  13. ^ Compact Oxford English dictionary. Oxford University Press. 2007. humanism n. 1 a rationalistic system of thought attaching prime importance to human rather than divine or supernatural matters.
  14. ^ "Secular Humanism". Marraim-Webster.
  15. ^ Jacques Berlinerblau, How to be Secular: A Field Guide for Religious Moderates, Atheists and Agnostics (2012, Houghton-Mifflin Harcourt). p. 53.
  16. ^ Zuckerman, Galen et al., p. 119.
  17. ^ Zuckerman, Shook, (in bibliography), p. 575.
  18. ^ "CCPR General Comment 22: 30/07/93 on ICCPR Article 18". Archived from the original on 2015-01-16.
  19. ^ International Federation for Human Rights (1 August 2003). "Discrimination against religious minorities in Iran" (PDF). Retrieved 2009.
  20. ^ Davis, Derek H. "The Evolution of Religious Liberty as a Universal Human Right" (PDF). Archived from the original (PDF) on 23 July 2011. Retrieved 2009.
  21. ^ "Archived copy". Archived from the original on 2018-03-23. Retrieved .CS1 maint: archived copy as title (link)
  22. ^ (1978?) [People's Republic of China 1978 Constitution] (in Chinese). 1978. Retrieved 2021.
  23. ^ "Religious Composition by Country, 2010-2050". Pew Research Center's Religion & Public Life Project. 2015-04-02. Retrieved .
  24. ^ "Statistik".
  25. ^ Zuckerman, Phil, ed. (2010). "Ch. 9 Atheism And Secularity: The Scandinavian Paradox". Atheism and Secularity Vol.2. Praeger. ISBN 978-0313351815.
  26. ^ Zuckerman, Galen et al., "Secularity Around the World". pp. 30-32, 37-40, 44, 50-51.
  27. ^ "The Future of World Religions: Population Growth Projections, 2010-2050". Pew Research Center. April 5, 2012.
  28. ^ Zuckerman, Phil (2007). Martin, Michael (ed.). The Cambridge Companion to Atheism. Cambridge Univ. Press. p. 59. ISBN 978-0521603676.
  29. ^ Ellis, Lee; Hoskin, Anthony W.; Dutton, Edward; Nyborg, Helmuth (8 March 2017). "The Future of Secularism: a Biologically Informed Theory Supplemented with Cross-Cultural Evidence". Evolutionary Psychological Science. 3 (3): 224-43. doi:10.1007/s40806-017-0090-z. S2CID 88509159.
  30. ^ "Why People With No Religion Are Projected To Decline As A Share Of The World's Population". Pew Research Center. April 7, 2017.
  31. ^ "The Changing Global Religious Landscape: Babies Born to Muslims will Begin to Outnumber Christian Births by 2035; People with No Religion Face a Birth Dearth". Pew Research Center. April 5, 2017.
  32. ^ "Global Index of Religion and Atheism" (PDF). WIN/Gallup International. Archived from the original (PDF) on 16 October 2012. Retrieved 2015.
  33. ^ "Losing our Religion? Two Thirds of People Still Claim to be Religious" (PDF). WIN/Gallup International. WIN/Gallup International. April 13, 2015. Archived from the original (PDF) on April 30, 2015.
  34. ^ "Religion prevails in the world" (PDF). WIN/Gallup International. 2017-11-14. Archived from the original (PDF) on 2017-11-14. Retrieved .
  35. ^ Keysar, Ariela; Navarro-Rivera, Juhem (2017). "36. A World of Atheism: Global Demographics". In Bullivant, Stephen; Ruse, Michael (eds.). The Oxford Handbook of Atheism. Oxford University Press. ISBN 978-0199644650.
  36. ^ a b "Religiously Unaffiliated". The Global Religious Landscape. Pew Research Center: Religion & Public Life. December 18, 2012.
  37. ^ Inc, Gallup (December 24, 2015). "Percentage of Christians in U.S. Drifting Down, but Still High".
  38. ^ Keysar, Ariela; Navarro-Rivera, Juhem (2017). "36. A World of Atheism: Global Demographics". In Bullivant, Stephen; Ruse, Michael (eds.). The Oxford Handbook of Atheism. Oxford University Press. ISBN 978-0199644650.
  39. ^ (PDF). 2017-11-14 Archived from the original (PDF) on 2017-11-14. Retrieved . Missing or empty |title= (help)
  40. ^ "Losing our Religion? Two-Thirds of People Still Claim to be Religious" (PDF). WIN/Gallup International. WIN/Gallup International. 13 April 2015.
  41. ^ "WIN-Gallup International 'Religiosity and Atheism Index' reveals atheists are a small minority in the early years of 21st century". WIN-Gallup International. Retrieved 2015.
  42. ^ "GLOBAL INDEX OF RELIGIOSITY AND ATHEISM - 2012" (PDF). WIN-Gallup International. 27 July 2012. Archived from the original (PDF) on 21 October 2013. Retrieved 2015.
  43. ^ Dentsu Communication Institute ?60 (in Japanese)
  44. ^ Zuckerman, Phil (2006). "Atheism: Contemporary Numbers and Patterns". In Martin, Michael (ed.). The Cambridge Companion to Atheism. Cambridge University Press. pp. 47-66. ISBN 9780521842709.
  45. ^ a b c d Inglehart, Ronald F. (September-October 2020). "Giving Up on God The Global Decline of Religion". Foreign Affairs. Retrieved 2020.
  46. ^ Ikenberry, G. John (November-December 2004). "Book review. Sacred and Secular: Religion and Politics Worldwide". Foreign Affairs. doi:10.2307/20034150. JSTOR 20034150. Retrieved 2020.
  47. ^ "Findings and Insights". World Values Survey. Retrieved 2020.


External links

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