- Definitions|1
- Thesaurus|132
- Abbreviations|0
16 entries under adjective topic. ×
| foolproof(dependable, infallible) | |
| certain(certain, definite, sure, expected) | |
| infallible(certain, flawless, dependable, unquestionable) | |
| sure(certain, definite, expected, assured) | |
| unfailing(certain, flawless, unquestionable, undisputable) | |
| good | |
| reliable | |
| guaranteed(certain, definite, sure, flawless) | |
| secure | |
| unerring(certain, flawless, unquestionable, undisputable) | |
| dependable | |
| excellent | |
| fail-safe | |
| safe | |
| trustworthy | |
| warranted |
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| APA | Smart Define. (2015). sure-fire thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/sure-fire/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "sure-fire thesaurus" https://smartdefine.org/sure-fire/thesaurus/synonyms (accessed September 24, 2026). |
| Harvard | Smart Define 2015, sure-fire thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/sure-fire/thesaurus/synonyms>. |
| MLA | Smart Define. "sure-fire thesaurus" 14 April 2015. Web. 24 September 2026. <https://smartdefine.org/sure-fire/thesaurus/synonyms> |