38 entries under adjective topic. ×
| enured | |
| gargantuan(noun, verb, adverb) | |
| hard-bitten | |
| inured | |
| sinewy | |
| stringy | |
| callous | |
| calloused | |
| cartilaginous | |
| fibrous | |
| gristly | |
| hard-boiled | |
| hardened | |
| hempen | |
| leathered | |
| leatherlike | |
| leathery | |
| pugnacious | |
| rubbery | |
| self-absorbed(brutal, atrocious, barbaric, barbarous) |
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| APA | Smart Define. (2016). tough thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/tough/thesaurus/related |
| Chicago | Smart Define. 2016. "tough thesaurus" https://smartdefine.org/tough/thesaurus/related (accessed September 28, 2026). |
| Harvard | Smart Define 2016, tough thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/tough/thesaurus/related>. |
| MLA | Smart Define. "tough thesaurus" 30 March 2016. Web. 28 September 2026. <https://smartdefine.org/tough/thesaurus/related> |