- Definitions|2
- Thesaurus|176
- Abbreviations|0
| deist(irreligion, doubter) | |
| incredulous | |
| materialist(noun, person, heterodoxy, irreligion, cynic) | |
| pagan(noun, person, unbelieving) | |
| apostate(noun, person, unbelieving) | |
| doubtful | |
| dubious | |
| head shaker | |
| positivist(heterodoxy, irreligion) | |
| doubting Thomas | |
| misanthrope(noun, person, unbelieving) | |
| misbeliever(noun, person, incredulity, unbelieving) | |
| nihilist(noun, person, irreligion, unbelieving) | |
| rationalist(noun, person, irreligion, unbelieving) | |
| schismatic(noun, separatist) | |
| scoffer(noun, person, unbelieving) | |
| adherent | |
| alien | |
| cynical | |
| distrustful |
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| APA | Smart Define. (2015). skeptic thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/skeptic/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "skeptic thesaurus" https://smartdefine.org/skeptic/thesaurus/synonyms (accessed September 25, 2026). |
| Harvard | Smart Define 2015, skeptic thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/skeptic/thesaurus/synonyms>. |
| MLA | Smart Define. "skeptic thesaurus" 14 April 2015. Web. 25 September 2026. <https://smartdefine.org/skeptic/thesaurus/synonyms> |