203 entries under solid topic. ×
| anchored(adjective, calm, strong, secure, firm) | |
| bulky(strong, significant, large, robust) | |
| careful(adjective, strong, reasonable, sharp, sensible) | |
| energetic(adjective, strong, direct, tough) | |
| even(verb, adjective, calm, check, strong) | |
| fastened(adjective, strong, secure, firm) | |
| forcible(adjective, clear, strong, direct, tough) | |
| imperturbable(adjective, calm, firm, sensible) | |
| incontrovertible(clear, reasonable, certain, definite) | |
| nailed(adjective, calm, strong, secure, firm) | |
| probable(adjective, reasonable, sensible, rational) | |
| resolute(adjective, calm, strong, secure, easy) | |
| righteous(adjective, good, strong, correct, right) | |
| sinewy(adjective, strong, tough, fit) | |
| tenacious(adjective, strong, secure, tough, fit) | |
| tried-and-true(adjective, good, strong, honest, sensible) | |
| true-blue(adjective, strong, honest, true) | |
| unqualified(adjective, firm, stable, fixed) | |
| unwavering(adjective, calm, strong, secure, firm) | |
| veracious(strong, correct, honest, proper) |
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| APA | Smart Define. (2016). sound thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/sound/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "sound thesaurus" https://smartdefine.org/sound/thesaurus/synonyms (accessed September 25, 2026). |
| Harvard | Smart Define 2016, sound thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/sound/thesaurus/synonyms>. |
| MLA | Smart Define. "sound thesaurus" 24 March 2016. Web. 25 September 2026. <https://smartdefine.org/sound/thesaurus/synonyms> |