- Definitions|0
- Thesaurus|218
- Abbreviations|0
82 entries under doubtful topic. ×
| debatable(adjective, open, uncertain, shaky) | |
| dubious(adjective, clear, open, certain, doubt) | |
| questionable(adjective, clear, certain, uncertain) | |
| uncertain(adjective, clear, open, certain, doubt) | |
| problematic(adjective, clear, certain, uncertain) | |
| suspicious(adjective, uncertain, wary, unsure) | |
| undecided(adjective, open, certain, doubt, uncertain) | |
| unsure(adjective, clear, open, obscure, certain) | |
| ambiguous(adjective, clear, open, obscure, certain) | |
| disputable(adjective, uncertain, unsure) | |
| vague(adjective, open, obscure, uncertain) | |
| arguable(adjective, uncertain, unsure) | |
| conjectural(adjective, vague, unsure) | |
| iffy(adjective, clear, open, certain, uncertain) | |
| in question(adjective, obscure, uncertain, anxious) | |
| indeterminate(adjective, clear, obscure, certain, uncertain) | |
| moot(adjective, open, uncertain, unsettled) | |
| skeptical(adjective, certain, doubt, uncertain) | |
| suspect(adjective, uncertain, shaky, unsure) | |
| suspecting(adjective, careful, suspicious, wary) |
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| APA | Smart Define. (2015). in doubt thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/in_doubt/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "in doubt thesaurus" https://smartdefine.org/in_doubt/thesaurus/synonyms (accessed September 25, 2026). |
| Harvard | Smart Define 2015, in doubt thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/in_doubt/thesaurus/synonyms>. |
| MLA | Smart Define. "in doubt thesaurus" 14 April 2015. Web. 25 September 2026. <https://smartdefine.org/in_doubt/thesaurus/synonyms> |