- Definitions|2
- Thesaurus|4.6k
- Abbreviations|0
124 entries under solid topic. ×
| hopeful(adjective, strong, easy, definite) | |
| regular(adjective, correct, reasonable, firm, sensible) | |
| resolute(adjective, strong, easy, firm) | |
| unchangeable(adjective, clear, firm, determined) | |
| unfaltering(adjective, set, clear, complete, firm) | |
| uniform(adjective, firm, stable, fixed) | |
| unwavering(adjective, set, clear, firm) | |
| devoted(adjective, good, strong, steady) | |
| loyal(adjective, good, strong, firm, honest) | |
| staunch(adjective, good, strong, firm, honest) | |
| strong(adjective, good, sound, easy, honest) | |
| undoubtful(adjective, strong, easy, firm) | |
| unimpeachable(adjective, set, strong, true) | |
| unquestioning(adjective, set, clear, firm) | |
| bold(adjective, sure, confident, self-assured) | |
| careful(good, strong, steady, consistent) | |
| changeless(adjective, firm, stable, limited) | |
| in the bag(expression, adjective, idiom, strong, easy) | |
| never-failing(adjective, set, clear, complete, firm) | |
| proved(good, strong, true, steady) |
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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> |