53 entries under adjective topic. ×

25
heathen(noun, not, irreligion, unbelieving)
22
atheist(noun, person, view, disbelieve)
20
pagan(noun, person, irreligious, nonbeliever)
17
agnostic(noun, irreligion, unbelieving, unbeliever)
12
gentile(noun, irreligion, nonbeliever)
9
heretic(noun, unbeliever, nonbeliever)
7
faithless
7
irreligious
6
godless
5
heretical
5
nullifidian
4
atheistic
4
profane(immoral, crude, disrespectful)
4
sceptic
4
unbelieving
2
disbelieving
2
disloyal
2
idolatrous
2
impious
2
unchristian
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APASmart Define. (2015). infidel thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/infidel/thesaurus/synonyms
ChicagoSmart Define. 2015. "infidel thesaurus" https://smartdefine.org/infidel/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2015, infidel thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/infidel/thesaurus/synonyms>.
MLASmart Define. "infidel thesaurus" 14 April 2015. Web. 24 September 2026. <https://smartdefine.org/infidel/thesaurus/synonyms>