70 entries under inflexible topic. ×
| concrete(adjective, set, hard, tough, firm) | |
| contracted(adjective, hard, firm, solid, stiff) | |
| creaky(adjective, hard, firm, solid, stiff) | |
| dense(adjective, set, strong, hard, tough) | |
| immalleable(adjective, hard, firm, solid, stiff) | |
| impenetrable(adjective, set, strong, hard, tough) | |
| impliable(adjective, hard, firm, solid, stiff) | |
| incompliant(adjective, hard, firm, solid, stiff) | |
| inelastic(adjective, hard, tough, firm, solid) | |
| mechanical(adjective, hard, firm, solid, usual) | |
| numbed(adjective, hard, firm, solid, stiff) | |
| refractory(adjective, hard, tough, firm, solid) | |
| rheumatic(adjective, hard, firm, solid, stiff) | |
| starched(verb, adjective, hard, firm, solid) | |
| starchy(adjective, hard, firm, solid, stiff) | |
| stark(adjective, hard, firm, solid, stiff) | |
| stiff as a board(expression, adjective, idiom, hard, firm) | |
| tense(adjective, hard, firm, solid, stiff) | |
| thick(adjective, hard, tough, firm, solid) | |
| tight(adjective, strong, hard, firm, solid) |
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| APA | Smart Define. (2016). hardened thesaurus. Retrieved September 30, 2026, from https://smartdefine.org/hardened/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "hardened thesaurus" https://smartdefine.org/hardened/thesaurus/synonyms (accessed September 30, 2026). |
| Harvard | Smart Define 2016, hardened thesaurus, Smart Define, viewed 30 September, 2026, <https://smartdefine.org/hardened/thesaurus/synonyms>. |
| MLA | Smart Define. "hardened thesaurus" 29 March 2016. Web. 30 September 2026. <https://smartdefine.org/hardened/thesaurus/synonyms> |