34 entries under noun topic. ×

16
heathen(adjective, not, ungodly, irreligion)
15
infidel(adjective, irreligion, cynic, unbelieving)
14
atheist(adjective, person, view, disbelieve)
13
doubter(person, cynic, dissenter, atheist)
12
skeptic(adjective, person, barbarian, irreligion)
11
pagan(adjective, person, ungodly, irreligious)
9
sceptic
9
unbelieving(adjective, independent, progressive, skeptical)
7
freethinker(radical, irreligion)
7
cynic(unbelieving, dissenter, questioner, atheist)
7
disbeliever(cynic, unbelieving, dissenter, questioner)
5
unbeliever(irreligion, unbeliever)
4
nullifidian
3
heretic(adjective, unbeliever)
3
nonbeliever(adjective, barbarian, cynic, doubter)
3
materialist(adjective, irreligion)
2
dissenter
2
doubting Thomas
2
non-believer(barbarian, unbeliever, pagan)
2
pessimist
<12>
11 years ago|6.2k views|share |citing 
APASmart Define. (2015). agnostic thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/agnostic/thesaurus/synonyms
ChicagoSmart Define. 2015. "agnostic thesaurus" https://smartdefine.org/agnostic/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2015, agnostic thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/agnostic/thesaurus/synonyms>.
MLASmart Define. "agnostic thesaurus" 14 April 2015. Web. 28 September 2026. <https://smartdefine.org/agnostic/thesaurus/synonyms>