Agnosticism is the view or belief that the existence of God, the divine, or the supernatural is either unknowable in principle or unknown in fact. It can also mean an apathy towards such religious belief and refer to personal limitations rather than a worldview. Another definition is the view that "human reason is incapable of providing sufficient rational grounds to justify either the belief that God exists or the belief that God does not exist."
Irreligion is the absence or rejection of religious beliefs or practices. It encompasses a wide range of viewpoints drawn from various philosophical and intellectual perspectives, including atheism, agnosticism, religious skepticism, rationalism, secularism, and non-religious spirituality. These perspectives can vary, with individuals who identify as irreligious holding diverse beliefs about religion and its role in their lives.
The Oxford English Dictionary defines religiosity as: "Religiousness; religious feeling or belief. [...] Affected or excessive religiousness". Different scholars have seen this concept as broadly about religious orientations and degrees of involvement or commitment. The contrast between "religious" and "religiose" and the concept of "strengthening" faith suggest differences in the intensity of religiosity.
Religion in the United States is both widespread and diverse, with higher reported levels of belief than other wealthy Western nations. Polls indicate that an overwhelming majority of Americans believe in a higher power (2021), engage in spiritual practices (2022), and consider themselves religious or spiritual (2017).
Jewish atheism is the atheism of people who are ethnically and culturally Jewish.
Some movements or sects within traditionally monotheistic or polytheistic religions recognize that it is possible to practice religious faith, spirituality and adherence to tenets without a belief in deities. People with what would be considered religious or spiritual belief in a supernatural controlling power are defined by some as adherents to a religion; the argument that atheism is a religion has been described as a contradiction in terms.
Accurate demographics of atheism are difficult to obtain since conceptions of atheism vary considerably across different cultures and languages, ranging from an active concept to being unimportant or not developed. Also in some countries and regions atheism carries a strong stigma, making it harder to count atheists in these countries. In global studies, the number of people without a religion is usually higher than the number of people without a belief in a deity and the number of people who agree with statements on lacking a belief in a deity is usually higher than the number of people who self-identify as "atheists".
Christian atheism is an ideology that embraces the teachings, narratives, symbols, practices, or communities associated with Christianity without accepting the literal existence of God. It often overlaps with nontheism and post-theism.
Atheism, in the broadest sense, is an absence of belief in the existence of deities. Less broadly, atheism is a rejection of the belief that any deities exist. In an even narrower sense, atheism is specifically the position that there are no deities. Atheism is contrasted with theism, which is the belief that at least one deity exists.
Atheism, agnosticism, scepticism, freethought, secular humanism or general irreligion are increasing in Australia. Post-war Australia has become a highly secularised country. Religion does not play a major role in the lives of much of the population.
In the United States, between 4% and 15% of citizens demonstrated nonreligious attitudes and naturalistic worldviews, namely atheists or agnostics. The number of self-identified atheists and agnostics was around 4% each, while many persons formally affiliated with a religion are likewise non-believing.
Agnostic atheism — or atheistic agnosticism — 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 they are agnostic because they claim that the existence of a divine entity or entities is either unknowable in principle or currently unknown in fact.
Irreligion is common in Sweden, and Sweden is one of the most secular nations in the world. The majority of Swedish citizens are members of the Church of Sweden, but very few are practicing members. Sweden has legally been a secular state since 2000 when the Church of Sweden was separated from the state.
Irreligion in Ireland pertains to the population of Ireland that are atheist, agnostic, or otherwise unaffiliated with any religion. The 2022 census recorded that 14% of the population was irreligious; the second largest category after Roman Catholicism. The population was traditionally devoutly Catholic throughout much of Ireland's modern history, with a peak of 94.9% identifying as Catholic in the 1961 census. This percentage has declined to 69% in the 2022 census, the lowest recorded. Conversely, those with no religion made up less than 0.1% of the population in 1961; the proportion grew slowly until the 1991 census where it began to rapidly increase to its current share of 14% of the population in 2022.
The relationship between the level of religiosity and the level of education has been studied since the second half of the 20th century.
Irreligion in the Middle East is the lack of religion in the Middle East. Though atheists in the Middle East are rarely public about their lack of belief, as they are persecuted in many countries where they are classified as terrorists, there are some atheist organizations in the Middle East. Islam dominates public and private life in most Middle Eastern countries. Nonetheless, there reside small numbers of irreligious individuals within those countries who often face serious formal and, in some cases, informal legal and social consequences.
Irreligion in Latin America refers to various types of irreligion, including atheism, agnosticism, deism, secular humanism, secularism and non-religious. According to a Pew Research Center survey from 2014, 8% of the population is not affiliated with a religion. According to Latinobarómetro, the share of irreligious people in Latin America quadrupled between 1996 and 2020, from 4% to 16%.
The secular movement refers to a social and political trend in the United States, beginning in the early years of the 20th century, with the founding of the American Association for the Advancement of Atheism in 1925 and the American Humanist Association in 1941, in which atheists, agnostics, secular humanists, freethinkers, and other nonreligious and nontheistic Americans have grown in both numbers and visibility. There has been a sharp increase in the number of Americans who identify as religiously unaffiliated, from under 10 percent in the 1990s to 20 percent in 2013. The trend is especially pronounced among young people, with about one in three Americans younger than 30 identifying as religiously unaffiliated, a figure that has nearly tripled since the 1990s.
In sociology, desecularization is a resurgence or growth of religion after a period of secularization. The theory of desecularization is a reaction to the theory known as the secularization thesis, which posits a gradual decline in the importance of religion and of religious belief itself, as a universal feature of modern society. The term desecularization was coined by Peter L. Berger, a former proponent of the secularization thesis, in his 1999 book The Desecularization of the World.
