- Definitions|2
- Thesaurus|4.6k
- Abbreviations|0
194 entries under sure topic. ×
| guaranteed(adjective, definite, fixed, positive) | |
| sound(noun, adjective, clear, strong, easy) | |
| unquestioned(adjective, complete, firm, obedient) | |
| irrevocable(adjective, definite, fixed, expected) | |
| unconditional(adjective, complete, total, exact, definite) | |
| undoubting(adjective, set, clear, firm) | |
| confirmed(adjective, solid, determined, usual, regular) | |
| doubtless(adjective, adverb, clear, definite) | |
| sanguine(adjective, strong, easy, firm, solid) | |
| self-confident(adjective, strong, easy, firm, solid) | |
| solid(adjective, good, strong, sound, correct) | |
| affirmative(adjective, clear, affirmation, affirmative) | |
| certified(adjective, honest, true, straight, definite) | |
| cocksure(adjective, clear, confident, arrogant) | |
| perfect(adjective, clear, complete, correct, total) | |
| sealed(adjective, near, definite, doomed) | |
| unchanging(adjective, set, clear, firm, solid) | |
| warranted(adjective, definite, fixed, valid) | |
| believing(adjective, firm, positive, confident) | |
| calm(adjective, firm, solid, stable, fixed) |
For more, visit
Certain on
Power Thesaurus
| APA | Smart Define. (2016). certain thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/certain/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "certain thesaurus" https://smartdefine.org/certain/thesaurus/synonyms (accessed September 22, 2026). |
| Harvard | Smart Define 2016, certain thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/certain/thesaurus/synonyms>. |
| MLA | Smart Define. "certain thesaurus" 31 March 2016. Web. 22 September 2026. <https://smartdefine.org/certain/thesaurus/synonyms> |