754 entries under adjective topic. ×
| pigheaded(mean, hard, tough, firm) | |
| prudish(tough, correct, severe, firm) | |
| unvarying(set, still, regular, fixed) | |
| buckram(hard, firm, solid, stiff) | |
| changeless(set, severe, firm, still) | |
| close-minded | |
| cold(hard, cool, severe, harsh) | |
| correct(hard, severe, rough, difficult) | |
| dense(set, strong, hard, tough) | |
| finicky(tough, harsh, strict, thorough) | |
| frozen(hard, firm, solid, fixed) | |
| fussy(tough, harsh, strict, particular) | |
| headstrong(tough, firm, unreasonable, inflexible) | |
| indurate(mean, hard, firm, determined) | |
| oppressive(hard, tough, severe, rough) | |
| persevering(tough, firm, determined, unreasonable) | |
| pitiless(severe, harsh, cruel, determined) | |
| proper(hard, correct, severe, rough) | |
| reserved | |
| stark(hard, severe, firm, solid) |
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| APA | Smart Define. (2015). rigid thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/rigid/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "rigid thesaurus" https://smartdefine.org/rigid/thesaurus/synonyms (accessed September 24, 2026). |
| Harvard | Smart Define 2015, rigid thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/rigid/thesaurus/synonyms>. |
| MLA | Smart Define. "rigid thesaurus" 3 August 2015. Web. 24 September 2026. <https://smartdefine.org/rigid/thesaurus/synonyms> |