Atheist definition

āthēist
Frequency:
A person who believes that there is no God.
noun
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The definition of an atheist is a person who does not believe in the existence of any kind of God or higher power.

An example of an atheist is a person whose beliefs are based in science, such as the idea humans came from evolution rather than Adam and Eve.

noun
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(broadly) A person who rejects belief that any deities exist (whether or not that person believes that deities do not exist).
noun
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(loosely) A person who has no belief in any deities, such as a person who has no concept of deities.
noun
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(loosely, uncommon) A person who does not believe in a particular deity (any deity in a particular pantheon), notwithstanding that they may believe in another deity.
noun
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Of or relating to atheists or atheism; atheistic.
adjective
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(narrowly) A person who believes that no deities exist (especially, one who has no other religious belief).
noun
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Other Word Forms

Noun

Singular:
atheist
Plural:
atheists

Origin of atheist

  • From French athéiste (athée + -iste), from Latin atheos, from Ancient Greek ἄθεος (atheos, “godless, without god”), from ἀ- (a-, “without”) + θεός (theos, “god”)..

    From Wiktionary