98 entries under harsh topic. ×
| austere(adjective, hard, severe, rough, difficult) | |
| powerful(adjective, strong, great, severe) | |
| taut(adjective, hard, rough, firm) | |
| strict(adjective, hard, tough, severe, rough) | |
| dear(adjective, fancy, difficult, informal) | |
| cold(adjective, hard, severe, careless) | |
| rigorous(adjective, hard, severe, rough, difficult) | |
| stern(adjective, hard, severe, rough, firm) | |
| cruel(adjective, hard, severe, rough) | |
| hard-nosed(adjective, hard, severe, rough, firm) | |
| intractable(adjective, hard, tough, rough, firm) | |
| difficult(adjective, hard, tough, severe, rough) | |
| dogged(adjective, set, cruel, determined) | |
| extreme(adjective, severe, extraordinary, cruel) | |
| headstrong(adjective, hard, severe, rough) | |
| arduous(adjective, hard, tough, severe, rough) | |
| callous(adjective, set, strong, hard, severe) | |
| stringent(adjective, hard, severe, rough, difficult) | |
| exacting(adjective, hard, tough, severe, rough) | |
| heavy(adjective, set, hard, tough, 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> |