239 entries under severe topic. ×
| fierce(noun, adjective, clear, bad, hard) | |
| sad(adjective, bad, hard, cool) | |
| demanding(adjective, dull, hard, easy) | |
| stony(adjective, mean, hard, cool) | |
| callous(noun, adjective, mean, hard, cool) | |
| stern(adjective, hard, easy, rough) | |
| nasty(adjective, mean, bad, hard, cool) | |
| obdurate(adjective, mean, strong, hard, cool) | |
| disturbing(adjective, hard, difficult, awful) | |
| grave(adjective, hard, difficult, harsh) | |
| hardened(noun, adjective, characteristic, strong, hard) | |
| powerful(adjective, person, body, strong, great) | |
| resolute(adjective, calm, clear, strong, hard) | |
| strenuous(adjective, action, dull, strong, great) | |
| unbending(adjective, mean, clear, strong, hard) | |
| courageous(adjective, clear, strong, lively) | |
| onerous(adjective, dull, hard, great) | |
| unfeeling(noun, adjective, calm, mean, hard) | |
| unsympathetic(adjective, mean, hard, cool) | |
| troublesome(adjective, characteristic, difficulty, difficult) |
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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> |