67 entries under toughened topic. ×
| obtuse(noun, adjective, hard, indifferent, unfeeling) | |
| resistant(adjective, strong, hard, tough, fit) | |
| unrepenting(adjective, hard, tough, harsh, cruel) | |
| unsentimental(adjective, cynical, hard-boiled, hard-bitten) | |
| benumbed(verb, adjective, hard, tough, severe) | |
| blind to(expression, adjective, hard, careless, indifferent) | |
| careless(adjective, hard, indifferent, cruel, apathetic) | |
| cruel(adjective, hard, tough, severe, careless) | |
| deaf to(expression, adjective, hard, careless, indifferent) | |
| hard-as-nails(adjective, hard, tough, unfeeling, unsympathetic) | |
| impenetrable(adjective, set, strong, hard, tough) | |
| impious(adjective, hard, wicked, immoral, unfeeling) | |
| insentient(adjective, hard, careless, indifferent, cruel) | |
| irreverent(adjective, hard, wicked, immoral, unfeeling) | |
| prepared(adjective, hard, wise, unfeeling, unsympathetic) | |
| soulless(adjective, hard, careless, indifferent, cruel) | |
| spiritless(adjective, hard, cool, careless, indifferent) | |
| torpid(adjective, hard, careless, indifferent, cruel) | |
| unaffected(adjective, hard, careless, indifferent, cruel) | |
| unashamed(adjective, hard, rude, corrupt, bold) |
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| APA | Smart Define. (2016). hardened thesaurus. Retrieved September 30, 2026, from https://smartdefine.org/hardened/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "hardened thesaurus" https://smartdefine.org/hardened/thesaurus/synonyms (accessed September 30, 2026). |
| Harvard | Smart Define 2016, hardened thesaurus, Smart Define, viewed 30 September, 2026, <https://smartdefine.org/hardened/thesaurus/synonyms>. |
| MLA | Smart Define. "hardened thesaurus" 29 March 2016. Web. 30 September 2026. <https://smartdefine.org/hardened/thesaurus/synonyms> |