a person who does not believe in God or gods
of or relating to atheists or atheism
WordReference Random House Unabridged Dictionary of American English © 2026
a•the•ist
(ā′thē ist),USA pronunciation n.
- Philosophya person who denies or disbelieves the existence of a supreme being or beings.
- Greek áthe(os) godless + -ist
- 1565–75
- Atheist, agnostic, infidel, skeptic refer to persons not inclined toward religious belief or a particular form of religious belief. An atheist is one who denies the existence of a deity or of divine beings. An agnostic is one who believes it impossible to know anything about God or about the creation of the universe and refrains from commitment to any religious doctrine. Infidel means an unbeliever, especially a nonbeliever in Islam or Christianity. A skeptic doubts and is critical of all accepted doctrines and creeds.
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