328 entries under strong topic. ×
| unbreakable(adjective, firm, solid, stiff) | |
| stringy(adjective, feature, characteristic, thin) | |
| stiff(adjective, hard, severe, rough) | |
| durable(adjective, calm, quality, sound) | |
| robust(adjective, person, body, hard) | |
| adamant(adjective, mean, hard, rough) | |
| hardy(adjective, person, quality, body) | |
| obdurate(adjective, mean, hard, cool) | |
| hardened(noun, adjective, characteristic, hard) | |
| leathery(adjective, feature, characteristic, hard) | |
| powerful(adjective, person, body, great) | |
| tiger(noun, bad, fit, temper) | |
| resolute(adjective, calm, clear, hard) | |
| solid(adjective, calm, person, body) | |
| strenuous(adjective, action, dull, great) | |
| unbending(adjective, mean, clear, hard) | |
| courageous(adjective, clear, severe, lively) | |
| stalwart(adjective, calm, person, body) | |
| vigorous(adjective, sound, fit, smart) | |
| brawny(adjective, person, body, vigorous) |
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| APA | Smart Define. (2016). tough thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/tough/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "tough thesaurus" https://smartdefine.org/tough/thesaurus/synonyms (accessed September 27, 2026). |
| Harvard | Smart Define 2016, tough thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/tough/thesaurus/synonyms>. |
| MLA | Smart Define. "tough thesaurus" 30 March 2016. Web. 27 September 2026. <https://smartdefine.org/tough/thesaurus/synonyms> |