- Definitions|2
- Thesaurus|180
- Abbreviations|0
| heathen(noun, adjective, not, irreligion, unbelieving) | |
| atheist(noun, adjective, person, view, disbelieve) | |
| pagan(noun, adjective, person, irreligious, nonbeliever) | |
| agnostic(noun, adjective, irreligion, unbelieving, unbeliever) | |
| gentile(noun, adjective, irreligion, nonbeliever) | |
| unbeliever(noun, irreligion, unbeliever, nonbeliever) | |
| heretic(noun, adjective, unbeliever, nonbeliever) | |
| freethinker(noun, radical, irreligion) | |
| disbeliever(noun, unbeliever) | |
| faithless(adjective, unbelieving) | |
| irreligious(adjective, unbelieving) | |
| godless | |
| heretical(adjective, unorthodox) | |
| nonbeliever(noun, unbeliever) | |
| nullifidian(noun, adjective) | |
| skeptic(noun, person, irreligion, unbelieving, unbeliever) | |
| atheistic(adjective, unbelieving) | |
| dubious | |
| profane(adjective, immoral, crude, disrespectful) | |
| sceptic(noun, adjective) |
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| APA | Smart Define. (2015). infidel thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/infidel/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "infidel thesaurus" https://smartdefine.org/infidel/thesaurus/synonyms (accessed September 20, 2026). |
| Harvard | Smart Define 2015, infidel thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/infidel/thesaurus/synonyms>. |
| MLA | Smart Define. "infidel thesaurus" 14 April 2015. Web. 20 September 2026. <https://smartdefine.org/infidel/thesaurus/synonyms> |