- Definitions|2
- Thesaurus|4.6k
- Abbreviations|0
| specific(adjective, clear, correct, plain, exact) | |
| certainty | |
| determined(adjective, good, strong, easy, firm) | |
| assurance | |
| assured(adjective, clear, understanding, strong, easy) | |
| definiteness | |
| positiveness | |
| reality | |
| surety | |
| truth | |
| dependable(adjective, good, clear, strong, sound) | |
| fixed(adjective, change, clear, complete, firm) | |
| irrefutable(adjective, certain, true, definite, sure) | |
| reliable(adjective, clear, strong, sound, easy) | |
| absoluteness | |
| accuracy | |
| actuality | |
| articulateness | |
| authenticity | |
| axiom |
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| APA | Smart Define. (2016). certain thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/certain/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "certain thesaurus" https://smartdefine.org/certain/thesaurus/synonyms (accessed September 20, 2026). |
| Harvard | Smart Define 2016, certain thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/certain/thesaurus/synonyms>. |
| MLA | Smart Define. "certain thesaurus" 31 March 2016. Web. 20 September 2026. <https://smartdefine.org/certain/thesaurus/synonyms> |