73 entries under adjective topic. ×
| unsure(clear, certain, doubtful, insecure) | |
| uncertain(clear, doubtful, changeable) | |
| doubtful | |
| dubious(clear, honest, doubtful) | |
| iffy | |
| indefinite(certain, doubtful, vague, unsure) | |
| insecure(strong, uncertain, steady, worried) | |
| problematic(clear, open) | |
| shaky(strong, sound, doubtful) | |
| undecided(definite, sure) | |
| wavering | |
| ambiguous(clear, plain) | |
| debatable | |
| equivocal(uncertain, doubtful) | |
| fictitious(honest, untrue, factual) | |
| precarious(strong, stable, doubtful, tricky) | |
| risky(strong, safe, dangerous) | |
| unclear | |
| unreliable(clear, strong, dependable) | |
| unsound(strong, sound, well) |
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| APA | Smart Define. (2016). sure thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/sure/thesaurus/antonyms |
| Chicago | Smart Define. 2016. "sure thesaurus" https://smartdefine.org/sure/thesaurus/antonyms (accessed September 24, 2026). |
| Harvard | Smart Define 2016, sure thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/sure/thesaurus/antonyms>. |
| MLA | Smart Define. "sure thesaurus" 31 March 2016. Web. 24 September 2026. <https://smartdefine.org/sure/thesaurus/antonyms> |