11 entries under certain topic. ×
| confident(adjective, weak, timid, assured) | |
| sure(adjective, clear, definite) | |
| clear(adjective, doubtful, sure, ambiguous) | |
| definite(adjective, clear, exact, fixed) | |
| inevitable(adjective, distant) | |
| positive(adjective, definite) | |
| secure(adjective, clear, weak, soft) | |
| unfailing(adjective, unchanging) | |
| unmistakable(adjective, obscure, definite) | |
| express(adjective, dull, precise) | |
| airtight |
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| APA | Smart Define. (2016). uncertain thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/uncertain/thesaurus/antonyms |
| Chicago | Smart Define. 2016. "uncertain thesaurus" https://smartdefine.org/uncertain/thesaurus/antonyms (accessed September 21, 2026). |
| Harvard | Smart Define 2016, uncertain thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/uncertain/thesaurus/antonyms>. |
| MLA | Smart Define. "uncertain thesaurus" 24 March 2016. Web. 21 September 2026. <https://smartdefine.org/uncertain/thesaurus/antonyms> |