atheism.
A non-belief in deities.
Meaning & usage
A non-belief in deities. Belief that no deities exist (sometimes including rejection of other religious beliefs).
A non-belief in deities. A lack of belief in deities, or a belief that there is insufficient evidence to believe in a god.
A non-belief in deities. Absence of belief that any deities exist (including absence of the concept of deities).
Neglect of one's obligations to God; behavior incongruent with belief in God (regardless of belief in the strict sense).
Absence of belief in a particular deity, pantheon, or religious doctrine (notwithstanding belief in other deities).
A rejection of all religions, even non-theistic ones.
Where this word comes from
16th century Middle French athéisme, from athée (“atheist”), a loan from Ancient Greek ἄθεος (átheos, “godless”, from ἀ- (a-, “without”) + θεός (theós, “deity, god”)). First English attestation dates to 1587 (OED).
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Definitions, grammatical labels, IPA, etymology and examples: Wiktionary contributors, extracted by Kaikki / Wiktextract. Adapted under CC BY-SA 4.0. Selected fields and authored examples are shown; third-party quotations and audio are omitted. See contributor history.
Last enriched 2026-09-10. Definitions are in English. Romanizations are shown when supplied by the source; syllable estimates are omitted for unsupported scripts.