7 entries under doubtful topic. ×
| unsure(adjective, clear, certain, insecure) | |
| uncertain(adjective, clear, changeable) | |
| dubious(adjective, clear, honest) | |
| indefinite(adjective, certain, vague, unsure) | |
| shaky(adjective, strong, sound) | |
| equivocal(adjective, uncertain) | |
| precarious(adjective, strong, stable, tricky) |
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| APA | Smart Define. (2016). sure thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/sure/thesaurus/antonyms |
| Chicago | Smart Define. 2016. "sure thesaurus" https://smartdefine.org/sure/thesaurus/antonyms (accessed September 25, 2026). |
| Harvard | Smart Define 2016, sure thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/sure/thesaurus/antonyms>. |
| MLA | Smart Define. "sure thesaurus" 31 March 2016. Web. 25 September 2026. <https://smartdefine.org/sure/thesaurus/antonyms> |