120 entries under severe topic. ×
| powerful(adjective, strong, great, harsh) | |
| exorbitant(adjective, fancy, informal, extraordinary) | |
| strict(adjective, hard, tough, rough) | |
| potent(adjective, strong, great, firm) | |
| cold(adjective, hard, harsh, careless) | |
| punctilious(adjective, characteristic, hard, correct) | |
| rigorous(adjective, hard, rough, difficult) | |
| stern(adjective, hard, rough, firm) | |
| cruel(adjective, hard, rough, harsh) | |
| excessive(adjective, fancy, extraordinary, unreasonable) | |
| hard-nosed(adjective, hard, rough, firm) | |
| laborious(adjective, hard, tough, rough) | |
| difficult(adjective, hard, tough, rough) | |
| extreme(adjective, harsh, extraordinary, cruel) | |
| headstrong(adjective, hard, rough, harsh) | |
| solemn(adjective, noble, grand, serious) | |
| arduous(adjective, hard, tough, rough) | |
| callous(adjective, set, strong, hard) | |
| extravagant(adjective, fancy, extraordinary, unreasonable) | |
| inordinate(adjective, fancy, unreasonable, extreme) |
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| APA | Smart Define. (2015). stiff thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/stiff/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "stiff thesaurus" https://smartdefine.org/stiff/thesaurus/synonyms (accessed September 24, 2026). |
| Harvard | Smart Define 2015, stiff thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/stiff/thesaurus/synonyms>. |
| MLA | Smart Define. "stiff thesaurus" 24 December 2015. Web. 24 September 2026. <https://smartdefine.org/stiff/thesaurus/synonyms> |