163 entries under solid topic. ×
| responsible(adjective, good, strong, true) | |
| self-possessed(adjective, calm, quiet, cool, firm) | |
| undeviating(adjective, strong, flat, firm) | |
| unshaken(adjective, set, clear, strong, flat) | |
| careful(adjective, good, strong, honest) | |
| composed(adjective, calm, quiet, cool) | |
| ensured(adjective, certain, confident, settled) | |
| regular(adjective, reasonable, firm, sensible) | |
| sealed(adjective, certain, definite, confident) | |
| stout(adjective, calm, strong, tough, firm) | |
| sturdy(adjective, calm, strong, tough, continue) | |
| tried-and-true(adjective, good, strong, honest) | |
| wholehearted(adjective, set, complete, firm, honest) | |
| bold(adjective, certain, daring, confident) | |
| collected(adjective, calm, certain, composed) | |
| conscientious(adjective, good, close, strong, correct) | |
| durable(adjective, calm, strong, secure, firm) | |
| even(adjective, adverb, calm, strong, secure) | |
| immutable(calm, strong, steady, even) | |
| in the bag(expression, adjective, idiom, strong, easy) |
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| APA | Smart Define. (2016). sure thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/sure/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "sure thesaurus" https://smartdefine.org/sure/thesaurus/synonyms (accessed September 22, 2026). |
| Harvard | Smart Define 2016, sure thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/sure/thesaurus/synonyms>. |
| MLA | Smart Define. "sure thesaurus" 31 March 2016. Web. 22 September 2026. <https://smartdefine.org/sure/thesaurus/synonyms> |