179 entries under strong topic. ×
| tough(adjective, person, dull, mean, body) | |
| firm(noun, adjective, adverb, feature, state) | |
| stable(adjective, strain, firm, solid) | |
| sound(noun, adjective, reasonable, strain) | |
| rigid(adjective, feature, state, characteristic, mean) | |
| severe(adjective, nature, mean, tough) | |
| tight(adjective, adverb, severe, strain) | |
| unyielding(adjective, mean, tough, easy) | |
| cruel(adjective, person, mean, cool) | |
| harsh(adjective, mean, cool, tough) | |
| stout(adjective, person, body, strength) | |
| robust(adjective, person, body, strength) | |
| durable(adjective, strain, firm, stiff) | |
| resistant(adjective, characteristic, strain, firm) | |
| rough(adjective, great, tough, severe) | |
| inflexible(adjective, characteristic, mean, tough) | |
| stubborn(adjective, characteristic, quality, mean) | |
| rugged(adjective, tough, severe, continue) | |
| solid(adjective, adverb, characteristic, person, body) | |
| adamant(adjective, mean, tough, rough) |
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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> |