157 entries under rigid topic. ×
| starchy(adjective, hard, firm, proper, grand) | |
| rigorous(adjective, hard, severe, rough, difficult) | |
| stern(adjective, hard, severe, rough, firm) | |
| adamantine(adjective, firm, determined, resolute) | |
| dense(adjective, set, strong, hard, tough) | |
| hard-nosed(adjective, hard, severe, rough, firm) | |
| intractable(adjective, hard, tough, rough, firm) | |
| stony(adjective, hard, firm, careless, indifferent) | |
| stuffy(adjective, correct, proper, careful, affected) | |
| buckram(adjective, hard, firm, dead) | |
| priggish(adjective, characteristic, correct, careful) | |
| resolved(adjective, behaviour) | |
| starched(adjective, characteristic, hard, correct, firm) | |
| steely(adjective, set, hard, firm, dead) | |
| thick(adjective, set, hard, tough, rough) | |
| ungraceful(adjective, hard, firm, rude, coarse) | |
| unswayable(adjective, tough, firm, determined, resolute) | |
| unwavering(adjective, determined, resolute, purpose) | |
| aloof(adjective, cool, tough, correct, firm) | |
| callous(adjective, set, strong, hard, severe) |
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| APA | Smart Define. (2015). stiff thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/stiff/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "stiff thesaurus" https://smartdefine.org/stiff/thesaurus/synonyms (accessed September 25, 2026). |
| Harvard | Smart Define 2015, stiff thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/stiff/thesaurus/synonyms>. |
| MLA | Smart Define. "stiff thesaurus" 24 December 2015. Web. 25 September 2026. <https://smartdefine.org/stiff/thesaurus/synonyms> |