1,055 entry under adjective topic. ×
| tenacious(strong, firm, determined, resolute) | |
| troublesome(characteristic, severe, difficulty, difficult) | |
| obstinate(mean, strong, hard, rough) | |
| chewy(feature, characteristic, structure, sinewy) | |
| exacting(dull, hard, easy, severe) | |
| hard-boiled(noun, mean, strong, hard) | |
| ruthless(strong, hard, severe, rough) | |
| strict(strong, hard, easy, severe) | |
| determined(clear, strong, hard, severe) | |
| formidable(strong, severe, difficulty, rough) | |
| glutinous(feature, characteristic, structure, viscous) | |
| savage(hard, rough, harsh, violent) | |
| strapping(person, body, strong, sound) | |
| insensitive(noun, mean, hard, cool) | |
| heavy(noun, good, person, dull) | |
| husky(person, body, strong, fresh) | |
| rocky(firm, stiff, rigid, troubled) | |
| ropy(feature, characteristic, thin, vigorous) | |
| sinewy(strong, sound, fit, thin) | |
| sound(calm, strong, fit, firm) |
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| APA | Smart Define. (2016). tough thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/tough/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "tough thesaurus" https://smartdefine.org/tough/thesaurus/synonyms (accessed September 28, 2026). |
| Harvard | Smart Define 2016, tough thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/tough/thesaurus/synonyms>. |
| MLA | Smart Define. "tough thesaurus" 30 March 2016. Web. 28 September 2026. <https://smartdefine.org/tough/thesaurus/synonyms> |