49 entries under solid topic. ×
| indurate(adjective, hard, firm, tense) | |
| inelastic(adjective, hard, firm, stiff) | |
| inflexible(adjective, close, hard, firm) | |
| jelled(adjective, hard, firm, tense) | |
| mechanical(adjective, hard, firm, tense) | |
| numbed(adjective, hard, firm, tense) | |
| ossified(adjective, hard, firm, tense) | |
| petrified(adjective, hard, firm, tense) | |
| refractory(adjective, hard, firm, tense) | |
| resistant(adjective, hard, firm, tense) | |
| rheumatic(adjective, hard, firm, tense) | |
| rigid(adjective, hard, firm, stiff) | |
| set(adjective, hard, slight, fine, firm) | |
| starched(adjective, hard, firm, stiff) | |
| starchy(adjective, hard, firm, tense) | |
| stark(adjective, hard, firm, tense) | |
| steely(adjective, hard, firm, tense) | |
| stiff as a board(expression, adjective, idiom, firm) | |
| stony(adjective, hard, firm, stiff) | |
| taut(adjective, hard, firm, stiff) |
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| APA | Smart Define. (2015). contracted thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/contracted/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "contracted thesaurus" https://smartdefine.org/contracted/thesaurus/synonyms (accessed September 23, 2026). |
| Harvard | Smart Define 2015, contracted thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/contracted/thesaurus/synonyms>. |
| MLA | Smart Define. "contracted thesaurus" 14 April 2015. Web. 23 September 2026. <https://smartdefine.org/contracted/thesaurus/synonyms> |