- Definitions|2
- Thesaurus|4.1k
- Abbreviations|0
57 entries under adjective topic. ×
| unquestionable | |
| certain(valid, undoubtable) | |
| definite(clear, obscure, doubtful, indisputable) | |
| credible | |
| definitive(false, uncertain) | |
| conclusive | |
| clear(doubtful, ambiguous, indisputable, filled) | |
| decisive | |
| evident | |
| incontestable | |
| incontrovertible | |
| irrefutable | |
| positive | |
| categorical(uncertain, explicit, tentative, unconditional) | |
| indisputable | |
| undeniable | |
| accurate | |
| distinct | |
| lucid | |
| obvious |
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| APA | Smart Define. (2015). questionable thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/questionable/thesaurus/antonyms |
| Chicago | Smart Define. 2015. "questionable thesaurus" https://smartdefine.org/questionable/thesaurus/antonyms (accessed September 22, 2026). |
| Harvard | Smart Define 2015, questionable thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/questionable/thesaurus/antonyms>. |
| MLA | Smart Define. "questionable thesaurus" 13 April 2015. Web. 22 September 2026. <https://smartdefine.org/questionable/thesaurus/antonyms> |