- Definitions|2
- Thesaurus|4.6k
- Abbreviations|0
95 entries under unquestionable topic. ×
| sure(adjective, good, set, clear, understanding) | |
| positive(adjective, good, set, clear, strong) | |
| definite(adjective, good, clear, strong, complete) | |
| absolute(adjective, clear, strong, complete, correct) | |
| confident(adjective, set, clear, strong, easy) | |
| indubitable(adjective, clear, certain, true, real) | |
| clear(adjective, complete, flat, firm, total) | |
| determined(adjective, good, strong, easy, firm) | |
| assured(adjective, clear, understanding, strong, easy) | |
| fixed(adjective, change, clear, complete, firm) | |
| irrefutable(adjective, certain, true, definite, sure) | |
| reliable(adjective, clear, strong, sound, easy) | |
| particular(adjective, correct, exact, extraordinary, superior) | |
| unambiguous(adjective, clear, firm, plain, perfect) | |
| decided(adjective, clear, firm, solid, perfect) | |
| categorical(adjective, clear, complete, flat, total) | |
| firm(noun, adjective, good, change, clear) | |
| infallible(adjective, reliable, trustworthy, valid, dependable) | |
| convinced(adjective, set, clear, firm, content) | |
| true(adjective, good, strong, correct, firm) |
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| APA | Smart Define. (2016). certain thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/certain/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "certain thesaurus" https://smartdefine.org/certain/thesaurus/synonyms (accessed September 21, 2026). |
| Harvard | Smart Define 2016, certain thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/certain/thesaurus/synonyms>. |
| MLA | Smart Define. "certain thesaurus" 31 March 2016. Web. 21 September 2026. <https://smartdefine.org/certain/thesaurus/synonyms> |