187 entries under hard topic. ×
| buckram(adjective, firm, dead, rigid) | |
| difficult(adjective, tough, severe, rough) | |
| headstrong(adjective, severe, rough, harsh) | |
| starched(adjective, characteristic, correct, firm) | |
| steely(adjective, set, firm, dead) | |
| thick(adjective, set, tough, rough) | |
| ungraceful(adjective, firm, rude, coarse) | |
| arduous(adjective, tough, severe, rough) | |
| callous(adjective, set, strong, severe) | |
| compact(adjective, set, tough, firm) | |
| stringent(adjective, severe, rough, difficult) | |
| exacting(adjective, tough, severe, rough) | |
| graceless(adjective, firm, rude, coarse) | |
| heavy(adjective, set, tough, severe) | |
| rough(adjective, severe, difficult, harsh) | |
| stark(adjective, firm, utter, rigid) | |
| unchangeable(adjective, set, resolute, rigid) | |
| brittle(adjective, firm, tense, rigid) | |
| drastic(adjective, severe, rough, harsh) | |
| indomitable(adjective, rigid, inflexible, strict) |
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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> |