atheism

noun

(loosely) A lack of belief in deities, or a belief that there is insufficient evidence to believe in a god.

A non-belief in deities.

(strictly) Belief that no deities exist (sometimes including rejection of other religious beliefs).

(very loosely) Absence of belief that any deities exist (including absence of the concept of deities).

(sometimes proscribed) A rejection of all religions, even non-theistic ones.

(historical or rare) Absence of belief in a particular deity, pantheon, or religious doctrine (notwithstanding belief in other deities).

Roots

theos-the · Greek · god

Synonyms for atheism

agnosticismn irreligionn secularismn unbeliefn

Synonyms & related words for atheism

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Words related to atheism

Explore words related to atheism — words associated with it, words that go with it, and its nearest matches in meaning. Related words include atheistically, atheist, atheistic, atheistical, theism, theistical, theistic, nontheistic. Click any word to make it the center of the map and keep exploring the web of connections.

Synonyms for atheism

Common synonyms for atheism include agnosticism, irreligion, secularism, unbelief — words that share a close meaning. Hover or tap any word on the map for its definition and part of speech.

Where does atheism come from?

The word atheism breaks down into one root of Greek origin: the root -the, from Greek theos (“god”). Explore each root to see other English words built from the same source.