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Definition of atheism

atheism

/ˈeɪ.θi.ɪ.zəm/
a · the · ism
Adverb:atheistically
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Plural:atheisms
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Adjective:atheistic
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atheism Lexical Profile

atheism Game Scores & Validity

• noun

1

Disbelief or lack of belief in the existence of God or gods.

Example

"The philosophy seminar explored the historical arguments surrounding theism, agnosticism, and atheism."

Synonyms
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Antonyms
View all antonyms for atheism

Word Nuance & Usage

Often distinguished from 'agnosticism': atheism is the absence of belief in or rejection of the existence of deities, whereas agnosticism is the view that the existence of God or the divine is unknown or unknowable.

• Nearby Words

athabasca
athabasca falls
athabascan
atheism
atheist
atheistic
athenian

Word Origin & Etymology

Borrowed in the late 16th century from French athéisme, derived from Ancient Greek atheos ('without god'), combining the privative prefix a- ('without') and theos ('god').

Cite this Entry

Wordmom. (2026). Definition of Atheism. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/atheism
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