138 entries under rigid topic. ×
| resolute(adjective, tough, sharp, firm, intense) | |
| rock-hard(adjective, firm, compact, dense) | |
| stark(adjective, severe, sharp, firm, attitude) | |
| acrimonious(adjective, mean, love, severe, attitude) | |
| critical(adjective, tough, difficult, harsh, delicate) | |
| definite(adjective, clear, severe, rough, difficult) | |
| inelastic(adjective, tough, severe, firm, harsh) | |
| iron(noun, adjective, mean, strong, tough) | |
| unchangeable(adjective, resolute, inflexible, strict) | |
| compressed(adjective, set, strong, tough, firm) | |
| condensed(adjective, set, tough, firm, solid) | |
| fixed(adjective, adverb, mean, strong, rough) | |
| immutable(adjective, resolute, inflexible, strict) | |
| indestructible(adjective, firm, unyielding, steely) | |
| indurate(adjective, mean, firm, solid, stiff) | |
| rocklike(adjective, strong, firm, substantial, stiff) | |
| solidified(adjective, set, tough, firm, solid) | |
| tense(adjective, firm, solid, stiff) | |
| exact(adjective, correct, severe, stiff, real) | |
| impervious(adjective, set, tough, firm, solid) |
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| APA | Smart Define. (2016). hard thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/hard/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "hard thesaurus" https://smartdefine.org/hard/thesaurus/synonyms (accessed September 25, 2026). |
| Harvard | Smart Define 2016, hard thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/hard/thesaurus/synonyms>. |
| MLA | Smart Define. "hard thesaurus" 24 March 2016. Web. 25 September 2026. <https://smartdefine.org/hard/thesaurus/synonyms> |