15 entries under unbeliever topic. ×

16
heathen(noun, adjective, not, ungodly, irreligion)
15
infidel(noun, adjective, irreligion, cynic, unbelieving)
14
atheist(noun, adjective, person, view, disbelieve)
13
doubter(noun, person, cynic, dissenter, atheist)
12
skeptic(noun, adjective, person, barbarian, irreligion)
7
cynic(noun, unbelieving, dissenter, questioner, atheist)
7
disbeliever(noun, cynic, unbelieving, dissenter, questioner)
5
unbeliever(noun, irreligion)
3
heretic(noun, adjective)
3
nonbeliever(noun, adjective, barbarian, cynic, doubter)
2
dissenter
2
non-believer(noun, barbarian, pagan)
2
pessimist
1
free thinker(noun, expression, nonbeliever)
1
irreligionist(noun, nonbeliever)
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APASmart Define. (2015). agnostic thesaurus. Retrieved September 30, 2026, from https://smartdefine.org/agnostic/thesaurus/synonyms
ChicagoSmart Define. 2015. "agnostic thesaurus" https://smartdefine.org/agnostic/thesaurus/synonyms (accessed September 30, 2026).
HarvardSmart Define 2015, agnostic thesaurus, Smart Define, viewed 30 September, 2026, <https://smartdefine.org/agnostic/thesaurus/synonyms>.
MLASmart Define. "agnostic thesaurus" 14 April 2015. Web. 30 September 2026. <https://smartdefine.org/agnostic/thesaurus/synonyms>