93 entries under hardened topic. ×

8
tough(noun, adjective, strong, hard, careless)
6
callous(noun, adjective, hard, cruel, unfeeling)
6
inured(noun, adjective, hard, careless, indifferent)
5
experienced(adjective, veteran)
5
indurated(verb, adjective, hard, careless, indifferent)
5
seasoned(adjective, hard, unfeeling, unsympathetic, experienced)
4
case-hardened(noun, adjective, hard, careless, indifferent)
4
hard(adjective, strong, careless, indifferent, cruel)
4
steeled(noun, verb, adjective, set, hard)
4
thick-skinned(noun, adjective, hard, careless, indifferent)
2
hard-boiled(noun, adjective, hard, careless, indifferent)
2
insensate(noun, adjective, hard, careless, indifferent)
2
insensitive(noun, adjective, hard, careless, indifferent)
2
knowledgeable(experienced, veteran)
2
resistant(adjective, strong, hard, unfeeling, unsympathetic)
2
trained(adjective, experienced, veteran)
2
unfeeling(noun, adjective, hard, careless, indifferent)
1
accustomed(adjective, hard, unfeeling, unsympathetic)
1
apathetic(adjective, hard, careless, indifferent, cruel)
1
battle-scarred(experienced, veteran)
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APASmart Define. (2015). toughened thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/toughened/thesaurus/synonyms
ChicagoSmart Define. 2015. "toughened thesaurus" https://smartdefine.org/toughened/thesaurus/synonyms (accessed September 29, 2026).
HarvardSmart Define 2015, toughened thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/toughened/thesaurus/synonyms>.
MLASmart Define. "toughened thesaurus" 13 April 2015. Web. 29 September 2026. <https://smartdefine.org/toughened/thesaurus/synonyms>