19 entries under doubtful topic. ×
| uncertain(adjective, clear, sure, changeable) | |
| undefined(adjective, clear, obscure, vague) | |
| ambiguous(adjective, clear, obscure, plain) | |
| imprecise(adjective, obscure) | |
| indeterminate(adjective, obscure, uncertain, vague) | |
| unclear(adjective, clear, obscure) | |
| indistinct(adjective, obscure, plain, ambiguous) | |
| inexact(adjective, obscure) | |
| dubious(adjective, clear, honest, vague) | |
| equivocal(adjective, clear, obscure, uncertain) | |
| obscure | |
| unfixed(adjective, obscure) | |
| unlimited(adjective, obscure, limited, little) | |
| questionable(adjective, clear, obscure, indisputable) | |
| fuzzy(adjective, smooth, obscure) | |
| precarious(adjective, strong, stable, tricky) | |
| unsure(adjective, clear, obscure, certain) | |
| moot(adjective, arguable) | |
| not clear(expression, adjective, obscure) |
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| APA | Smart Define. (2016). definite thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/definite/thesaurus/antonyms |
| Chicago | Smart Define. 2016. "definite thesaurus" https://smartdefine.org/definite/thesaurus/antonyms (accessed September 26, 2026). |
| Harvard | Smart Define 2016, definite thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/definite/thesaurus/antonyms>. |
| MLA | Smart Define. "definite thesaurus" 31 March 2016. Web. 26 September 2026. <https://smartdefine.org/definite/thesaurus/antonyms> |