atheist

Definitions

A person who disbelieves or lacks belief in the existence of God or gods.

One who denies the existence of a supreme being or beings.

Examples

Although he was raised in a religious household, he eventually identified as an atheist.

The philosopher wrote several books explaining his perspective as a lifelong atheist.

Synonyms

nonbeliever skeptic unbeliever freethinker agnostic infidel irreligious person

Antonyms

believer theist devotee religious person faithful worshiper churchgoer