226 entries under hard topic. ×
| unswayable(adjective, determined, resolute, obstinate) | |
| grim(adjective, strong, tough, severe) | |
| dogged(adjective, mean, harsh, cruel) | |
| hanging tough(expression, adjective, mean, determined) | |
| meticulous(adjective, correct, severe, rough) | |
| mulish(adjective, mean, strong, tough) | |
| steely(adjective, strong, tough, firm) | |
| tense(adjective, firm, solid, stiff) | |
| scrupulous(adjective, good, complete, tough) | |
| unchangeable(adjective, set, regular, fixed) | |
| flinty(adjective, strong, tough, severe) | |
| stiff-necked(adjective, mean, strong, tough) | |
| close(adjective, tough, correct, severe) | |
| definite(adjective, correct, severe, rough) | |
| punctilious(adjective, close, tough, correct) | |
| taut(adjective, firm, solid, stiff) | |
| stony(adjective, set, firm, solid) | |
| hardheaded(adjective, strong, tough, determined) | |
| callous(adjective, set, mean, strong) | |
| cruel(adjective, strong, tough, severe) |
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| APA | Smart Define. (2015). rigid thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/rigid/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "rigid thesaurus" https://smartdefine.org/rigid/thesaurus/synonyms (accessed September 25, 2026). |
| Harvard | Smart Define 2015, rigid thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/rigid/thesaurus/synonyms>. |
| MLA | Smart Define. "rigid thesaurus" 3 August 2015. Web. 25 September 2026. <https://smartdefine.org/rigid/thesaurus/synonyms> |