1,209 entry under adjective topic. ×
| persistent(feature, state, characteristic, strain) | |
| stiff(feature, state, characteristic, tough) | |
| tough(person, dull, mean, body) | |
| firm(noun, adverb, feature, state) | |
| strong(person, body, strength, tough) | |
| difficult(dull, great, tough, easy) | |
| stable(strong, strain, firm, solid) | |
| sound(noun, strong, reasonable, strain) | |
| rigid(feature, state, characteristic, mean) | |
| severe(nature, mean, strong, tough) | |
| tight(adverb, strong, severe, strain) | |
| unyielding(mean, strong, tough, easy) | |
| cruel(person, mean, strong, cool) | |
| arduous(dull, great, tough, easy) | |
| harsh(mean, strong, cool, tough) | |
| stout(person, body, strong, strength) | |
| laborious(dull, great, tough, easy) | |
| steady(feature, state, characteristic, strain) | |
| substantial(tough, strain, difficult, solid) | |
| robust(person, body, strong, strength) |
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| APA | Smart Define. (2016). hard thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/hard/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "hard thesaurus" https://smartdefine.org/hard/thesaurus/synonyms (accessed September 23, 2026). |
| Harvard | Smart Define 2016, hard thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/hard/thesaurus/synonyms>. |
| MLA | Smart Define. "hard thesaurus" 24 March 2016. Web. 23 September 2026. <https://smartdefine.org/hard/thesaurus/synonyms> |