144 entries under sure topic. ×
| doubtless(adjective, clear, certain, unquestionable) | |
| factual(adjective, clear, correct, solid, perfect) | |
| flat out(expression, adjective, complete, total, exact) | |
| forceful(adjective, clear, energetic, certain) | |
| genuine(adjective, clear, correct, firm, total) | |
| irrefragable(adjective, certain, precise, decisive) | |
| proven(adjective, certain, true, obvious) | |
| real(adjective, clear, firm, certain) | |
| self-confident(adjective, strong, easy, firm, solid) | |
| thorough(adjective, clear, complete, flat, total) | |
| undoubting(adjective, complete, firm, full) | |
| all out(expression, full, precise, unqualified) | |
| cast-iron(certain, inflexible, intent, hard-and-fast) | |
| convincing(adjective, clear, certain, precise) | |
| dependable(adjective, good, strong, honest, solid) | |
| determinative(precise, absolute, decisive, final) | |
| in the bag(expression, adjective, idiom, strong, easy) | |
| inarguable(adjective, clear, certain, unquestionable) | |
| on ice(expression, adjective, clear, strong, easy) | |
| self-assured(adjective, strong, easy, solid, certain) |
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| APA | Smart Define. (2016). definite thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/definite/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "definite thesaurus" https://smartdefine.org/definite/thesaurus/synonyms (accessed September 26, 2026). |
| Harvard | Smart Define 2016, definite thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/definite/thesaurus/synonyms>. |
| MLA | Smart Define. "definite thesaurus" 31 March 2016. Web. 26 September 2026. <https://smartdefine.org/definite/thesaurus/synonyms> |