123 entries under strict topic. ×
| strait-laced(adjective, tough, correct, severe, firm) | |
| demanding(adjective, hard, tough, easy, severe) | |
| formal(adjective, tough, correct, severe, firm) | |
| implacable(adjective, mean, strong, hard, tough) | |
| resolved(adjective, severe, harsh, cruel, determined) | |
| grim(adjective, strong, hard, tough, severe) | |
| unchanging(adjective, set, severe, harsh, cruel) | |
| dogged(adjective, mean, hard, harsh, cruel) | |
| steely(adjective, strong, hard, tough, firm) | |
| incompliant(adjective, tough, severe, firm, resist) | |
| unchangeable(adjective, set, hard, regular, fixed) | |
| flinty(adjective, strong, hard, tough, severe) | |
| unmoving(adjective, severe, still, fixed, stiff) | |
| careful(adjective, close, correct, harsh, solid) | |
| close(adjective, hard, tough, correct, severe) | |
| definite(adjective, hard, correct, severe, rough) | |
| undeviating(adjective, severe, harsh, cruel, determined) | |
| single-minded(adjective, tough, severe, firm, harsh) | |
| static(adjective, set, secure, severe, still) | |
| cruel(adjective, strong, hard, tough, severe) |
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| APA | Smart Define. (2015). rigid thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/rigid/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "rigid thesaurus" https://smartdefine.org/rigid/thesaurus/synonyms (accessed September 24, 2026). |
| Harvard | Smart Define 2015, rigid thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/rigid/thesaurus/synonyms>. |
| MLA | Smart Define. "rigid thesaurus" 3 August 2015. Web. 24 September 2026. <https://smartdefine.org/rigid/thesaurus/synonyms> |