123 entries under strict topic. ×
| staunch(adjective, set, hard, determined, resolute) | |
| unfeeling(adjective, mean, hard, cool, severe) | |
| astringent(adjective, strong, hard, tough, severe) | |
| indomitable(adjective, strong, hard, tough, resolute) | |
| intense(adjective, complete, severe, total, harsh) | |
| rugged(adjective, strong, hard, tough, severe) | |
| ruthless(adjective, severe, harsh, cruel, determined) | |
| unsparing(adjective, strong, hard, tough, severe) | |
| bleak(adjective, hard, severe, sharp, flat) | |
| confirmed(adjective, proper, determined, usual, regular) | |
| hard-shell(adjective, strong, hard, tough, severe) | |
| methodical(adjective, correct, solid, exact, proper) | |
| opinionated(adjective, tough, firm, unreasonable, inflexible) | |
| serious(adjective, strong, hard, tough, severe) | |
| bitter(adjective, set, strong, hard, tough) | |
| brutal(adjective, hard, correct, severe, rough) | |
| dead set on(expression, adjective, idiom, severe, harsh) | |
| fierce(adjective, harsh, cruel, determined, persistent) | |
| official(adjective, correct, exact, proper, true) | |
| orderly(adjective, correct, proper, even) |
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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> |