66 entries under rigid topic. ×
| firm(noun, adjective, hard, strain, rough) | |
| stiff(adjective, hard, tough, strain, rough) | |
| hard(adjective, tough, strain, rough, firm) | |
| unyielding(adjective, hard, tough, strain, rough) | |
| resistant(adjective, strain, firm, solid, firmness) | |
| tight(adjective, strain, firm, solid, firmness) | |
| inflexible(adjective, hard, tough, rough, firm) | |
| incompliant(adjective, hard, tough, firm, difficult) | |
| unbending(adjective, hard, tough, rough, firm) | |
| sturdy(adjective, hard, tough, solid) | |
| fixed(adjective, hard, tough, rough, firm) | |
| set(adjective, hard, tough, firm, solid) | |
| stony(adjective, hard, firm, solid, stiff) | |
| annealed(adjective, hard, firm, solid, tense) | |
| arthritic(adjective, hard, firm, solid, tense) | |
| benumbed(adjective, hard, firm, solid, tense) | |
| brittle(adjective, hard, firm, solid, tense) | |
| buckram(adjective, hard, firm, solid, tense) | |
| cemented(adjective, hard, firm, solid, tense) | |
| chilled(adjective, hard, firm, solid, tense) |
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| APA | Smart Define. (2015). refractory thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/refractory/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "refractory thesaurus" https://smartdefine.org/refractory/thesaurus/synonyms (accessed September 22, 2026). |
| Harvard | Smart Define 2015, refractory thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/refractory/thesaurus/synonyms>. |
| MLA | Smart Define. "refractory thesaurus" 10 April 2015. Web. 22 September 2026. <https://smartdefine.org/refractory/thesaurus/synonyms> |