- Definitions|0
- Thesaurus|343
- Abbreviations|0
| well-grounded | |
| wrap-up(noun, store, trust, confidence, assurance) | |
| abiding(certain, reliable, trustworthy, unquestionable, undisputable) | |
| accountable | |
| actual | |
| affirmative | |
| assertive(certain, sure, guaranteed) | |
| assuredness(assurance, certainty, conviction) | |
| audacious(certain, sure, guaranteed) | |
| bold(certain, sure, guaranteed) | |
| bound(certain, unquestionable, undisputable) | |
| boundless | |
| brazen(certain, sure, guaranteed) | |
| can't-miss | |
| cast-iron certainty(noun, expression, trust, confidence, stock) | |
| changeless(certain, unquestionable, undisputable) | |
| clear(certain, unquestionable, undisputable) | |
| clear cut | |
| cocksure(certain, sure, guaranteed) | |
| collected(certain, sure, guaranteed) |
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| APA | Smart Define. (2015). surefire thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/surefire/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "surefire thesaurus" https://smartdefine.org/surefire/thesaurus/synonyms (accessed September 23, 2026). |
| Harvard | Smart Define 2015, surefire thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/surefire/thesaurus/synonyms>. |
| MLA | Smart Define. "surefire thesaurus" 10 April 2015. Web. 23 September 2026. <https://smartdefine.org/surefire/thesaurus/synonyms> |