95 entries under strong topic. ×
| indurated(adjective, set, hard, firm) | |
| packed(adjective, set, hard, firm) | |
| rough(adjective, hard, tough, severe) | |
| bullheaded(adjective, hard, tough, severe) | |
| by the book(expression, adjective, idiom, hard) | |
| disciplinary(adjective, hard, tough, severe) | |
| dyed-in-the-wool(adjective, set, hard, tough) | |
| forbidding(adjective, hard, tough, severe) | |
| frowning(adjective, hard, tough, severe) | |
| hang-tough(adjective, hard, tough, harsh) | |
| hard-bitten(adjective, hard, solid, stiff) | |
| hard as nails(expression, adjective, idiom, set) | |
| heavy(adjective, hard, tough, severe) | |
| leathery(adjective, hard, solid, stiff) | |
| mortified(adjective, hard, tough, severe) | |
| brawny(adjective, hard, solid, stiff) | |
| cohesive(adjective, hard, solid, stiff) | |
| compacted(adjective, set, hard, firm) | |
| conditioned(adjective, hard, solid, stiff) | |
| consolidated(adjective, set, hard, firm) |
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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> |