Antitheist

noun

noun ·Rare ·Advanced level

Definitions

Noun
  1. 1
    An active opponent of the belief in the existence of a god or gods.

Synonyms

All synonyms
antireligionantireligious

Etymology

From anti- + theist.

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.