968 entries under adjective topic. ×
| dogged(set, harsh, cruel, determined) | |
| extreme(severe, harsh, extraordinary, cruel) | |
| frigid(cool, cold, detached, unfriendly) | |
| headstrong(hard, severe, rough, harsh) | |
| hidebound(close, firm, restraint, determined) | |
| priggish(characteristic, correct, careful, rigid) | |
| resolved(behaviour, rigid) | |
| solemn(severe, noble, grand, serious) | |
| starched(characteristic, hard, correct, firm) | |
| steely(set, hard, firm, dead) | |
| tenacious(strong, determined, resolute, persistent) | |
| thick(set, hard, tough, rough) | |
| ungraceful(hard, firm, rude, coarse) | |
| unswayable(tough, firm, determined, resolute) | |
| unwavering(determined, resolute, purpose, rigid) | |
| aloof(cool, tough, correct, firm) | |
| arduous(hard, tough, severe, rough) | |
| blighter(nothingness, zero, nonentity) | |
| blind drunk(expression, idiom, drunk) | |
| blotto |
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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> |