191 entries under tough topic. ×
| dense(adjective, set, strong, hard) | |
| finicky(adjective, harsh, strict, thorough) | |
| fussy(adjective, harsh, strict, particular) | |
| headstrong(adjective, firm, unreasonable, inflexible) | |
| oppressive(adjective, hard, severe, rough) | |
| persevering(adjective, firm, determined, unreasonable) | |
| Draconian(adjective, severe, firm, harsh) | |
| aloof(adjective, cool, firm, fair) | |
| dead set(expression, adjective, severe, firm) | |
| difficult(adjective, hard, severe, rough) | |
| distant(adjective, firm, cold, unfriendly) | |
| hardened(adjective, strong, hard, firm) | |
| sturdy(adjective, close, set, strong, hard) | |
| astringent(adjective, strong, hard, severe) | |
| authoritarian(adjective, strong, hard, severe) | |
| compact(adjective, close, set, strong, hard) | |
| compressed(adjective, set, strong, hard) | |
| contumacious(adjective, firm, persistent, obstinate) | |
| fastidious(adjective, grim, particular, problematic) | |
| hard-core(adjective, strong, hard, severe) |
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| APA | Smart Define. (2015). rigid thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/rigid/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "rigid thesaurus" https://smartdefine.org/rigid/thesaurus/synonyms (accessed September 28, 2026). |
| Harvard | Smart Define 2015, rigid thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/rigid/thesaurus/synonyms>. |
| MLA | Smart Define. "rigid thesaurus" 3 August 2015. Web. 28 September 2026. <https://smartdefine.org/rigid/thesaurus/synonyms> |