- Definitions|2
- Thesaurus|1.6k
- Abbreviations|0
41 entries under adjective topic. ×
| doubtful(unclear, questionable) | |
| fishy(doubtful, suspicious) | |
| questionable | |
| suspicious(careless, certain, doubtful, fishy) | |
| uncertain | |
| ambiguous(clear, plain) | |
| arguable | |
| controversial | |
| debatable | |
| disputable(open, debatable) | |
| dubious(clear, honest) | |
| equivocal(uncertain, doubtful) | |
| indefinite | |
| moot | |
| controvertible | |
| dubitable | |
| impugnable | |
| problematic | |
| problematical | |
| shady |
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| APA | Smart Define. (2016). unquestionable thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/unquestionable/thesaurus/antonyms |
| Chicago | Smart Define. 2016. "unquestionable thesaurus" https://smartdefine.org/unquestionable/thesaurus/antonyms (accessed September 25, 2026). |
| Harvard | Smart Define 2016, unquestionable thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/unquestionable/thesaurus/antonyms>. |
| MLA | Smart Define. "unquestionable thesaurus" 31 March 2016. Web. 25 September 2026. <https://smartdefine.org/unquestionable/thesaurus/antonyms> |