238 entries under severe topic. ×
| demanding(adjective, hard, tough, easy) | |
| formal(adjective, tough, correct, firm) | |
| resolved(adjective, harsh, cruel, determined) | |
| grim(adjective, strong, hard, tough) | |
| unchanging(adjective, set, harsh, cruel) | |
| meticulous(adjective, hard, correct, rough) | |
| incompliant(adjective, tough, firm, resist) | |
| scrupulous(adjective, good, hard, complete, tough) | |
| flinty(adjective, strong, hard, tough) | |
| unmoving(adjective, still, fixed, stiff) | |
| stiff-necked(adjective, mean, strong, hard, tough) | |
| close(adjective, hard, tough, correct) | |
| cool(adjective, cold, detached, unfriendly) | |
| definite(adjective, hard, correct, rough) | |
| intolerant(adjective, set, plain, straightforward) | |
| punctilious(adjective, close, hard, tough, correct) | |
| puritanical(adjective, tough, correct, moderate) | |
| stuffy(adjective, tough, correct, moderate) | |
| undeviating(adjective, harsh, cruel, determined) | |
| single-minded(adjective, tough, firm, harsh) |
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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> |