138 entries under rigid topic. ×
| oppressive(adjective, dull, tough, severe, rough) | |
| trying(adjective, dull, tough, severe, rough) | |
| taxing(adjective, tough, severe, rough, difficult) | |
| stern(adjective, person, mean, tough, easy) | |
| solid(adjective, adverb, characteristic, person, body) | |
| callous(adjective, mean, cool, tough, severe) | |
| adamant(adjective, mean, strong, tough, rough) | |
| hard-nosed(adjective, mean, strong, tough, severe) | |
| adamantine(adjective, characteristic, strong, strength, tough) | |
| demanding(adjective, dull, tough, easy, severe) | |
| austere(adjective, strong, tough, severe, rough) | |
| stony(adjective, mean, cool, tough, severe) | |
| strict(adjective, strong, tough, easy, severe) | |
| flinty(adjective, strong, tough, severe, evil) | |
| onerous(adjective, dull, great, tough, severe) | |
| rigorous(adjective, strong, tough, severe, rough) | |
| hardened(adjective, tough, severe, firm, attitude) | |
| uncompromising(adjective, mean, severe, rough, difficult) | |
| exacting(adjective, dull, tough, easy, severe) | |
| obstinate(adjective, mean, tough, rough, harsh) |
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| APA | Smart Define. (2016). hard thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/hard/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "hard thesaurus" https://smartdefine.org/hard/thesaurus/synonyms (accessed September 24, 2026). |
| Harvard | Smart Define 2016, hard thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/hard/thesaurus/synonyms>. |
| MLA | Smart Define. "hard thesaurus" 24 March 2016. Web. 24 September 2026. <https://smartdefine.org/hard/thesaurus/synonyms> |