239 entries under severe topic. ×
| austere(adjective, strong, hard, sharp) | |
| hard-hearted(adjective, mean, hard, harsh) | |
| mean(noun, adjective, clear, hard, cool) | |
| pitiless(adjective, hard, sharp, harsh) | |
| thick-skinned(noun, adjective, mean, hard) | |
| uncaring(adjective, mean, hard, cool) | |
| unsparing(adjective, strong, hard, rough) | |
| wicked(adjective, clear, bad, strong, cool) | |
| effortful(adjective, great, rough, difficult) | |
| set(verb, adjective, calm, strong, hard) | |
| uncompassionate(adjective, mean, hard, cool) | |
| wearisome(adjective, dull, difficult, boring) | |
| authoritarian(noun, adjective, strong, hard) | |
| cold-blooded(adjective, calm, mean, hard, cool) | |
| grim(adjective, strong, hard, firm) | |
| inhuman(adjective, hard, harsh, violent) | |
| unemotional(adjective, calm, mean, hard, cool) | |
| apathetic(adjective, mean, hard, cool) | |
| hairy(adjective, hard, sharp, rough) | |
| hardhearted(adjective, hard, careless, indifferent) |
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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> |