atheist has definitions from the field of religion
1
[ noun ] (religion) someone who denies the existence of god

Used in print

(Morley Callaghan, A Passion in Rome....)

Or a Protestant , or one of those amusing dogmatic atheists , or a strict orthodox Communist .

Related terms

disbeliever

2
[ adjective ] related to or characterized by or given to atheism

Examples

"atheist leanings"

Related terms

atheism atheism

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