24 entries under clear topic. ×
| unsure(adjective, certain, doubtful, insecure) | |
| uncertain(adjective, doubtful, changeable) | |
| dubious(adjective, honest, doubtful) | |
| problematic(adjective, open) | |
| ambiguous(adjective, plain) | |
| unclear | |
| unreliable(adjective, strong, dependable) | |
| vague(adjective, plain, definite) | |
| unstable(adjective, sound, steady) | |
| apprehensive | |
| butterflies | |
| buttoned up(expression, careless) | |
| clammed up(expression, careless) | |
| dithering | |
| feel in bones(expression, idiom, calm) | |
| get vibes(expression, calm) | |
| have a hunch(expression, idiom, calm) | |
| have funny feeling(expression, idiom, calm) | |
| have hunch(expression, calm) | |
| imperceptive |
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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> |