67 entries under toughened topic. ×
| thick-skinned(noun, adjective, hard, tough, severe) | |
| unemotional(adjective, hard, cool, tough, severe) | |
| unsympathetic(adjective, hard, tough, severe, careless) | |
| apathetic(adjective, person, hard, cool, tough) | |
| impenitent(adjective, hard, tough, harsh, careless) | |
| indurated(verb, adjective, hard, cool, firm) | |
| seasoned(adjective, set, strong, hard, tough) | |
| unresponsive(adjective, person, hard, careless, indifferent) | |
| hard-nosed(adjective, hard, determined, resolute, unfeeling) | |
| steeled(noun, verb, adjective, set, strong) | |
| unbending(adjective, hard, firm, solid, careless) | |
| accustomed(adjective, set, hard, usual, regular) | |
| unconcerned(adjective, hard, cool, careless, indifferent) | |
| impassive(adjective, hard, cool, careless, indifferent) | |
| casehardened(adjective, hard, unfeeling, unsympathetic, callous) | |
| coldhearted(adjective, hard, indifferent, unfeeling, unsympathetic) | |
| cynical(adjective, hard, unfeeling, unsympathetic, stubborn) | |
| habituated(adjective, set, hard, fixed, unfeeling) | |
| hard-bitten(adjective, strong, hard, tough, careless) | |
| insensate(noun, adjective, hard, tough, severe) |
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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> |