275 entries under solid topic. ×
| dead set on(expression, adjective, idiom, secure) | |
| husky(adjective, strong, hard, tough, fit) | |
| intense(adjective, clear, tough, severe, harsh) | |
| material(adjective, strong, hard, physical) | |
| nailed(adjective, calm, strong, secure) | |
| regular(adjective, dull, complete, usual) | |
| right(adjective, close, complete, correct, moderate) | |
| safe(adjective, calm, good, clear, strong) | |
| sober(adjective, moderate, severe, harsh) | |
| starched(adjective, set, hard, rigid) | |
| starchy(adjective, hard, stiff, rigid) | |
| stark(adjective, strong, hard, sound, tough) | |
| thorough(adjective, clear, complete, total) | |
| vital(adjective, strong, complete, fit) | |
| brittle(adjective, hard, stiff, rigid) | |
| bulky(strong, hard, deep, large) | |
| calm(verb, adjective, fix, strong, secure) | |
| close-grained(adjective, close, hard, short) | |
| contracted(adjective, hard, certain, restrained) | |
| cool(adjective, cold, indifferent, stable) |
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| APA | Smart Define. (2016). firm thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/firm/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "firm thesaurus" https://smartdefine.org/firm/thesaurus/synonyms (accessed September 23, 2026). |
| Harvard | Smart Define 2016, firm thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/firm/thesaurus/synonyms>. |
| MLA | Smart Define. "firm thesaurus" 31 March 2016. Web. 23 September 2026. <https://smartdefine.org/firm/thesaurus/synonyms> |