4
tempered(verb, adjective)
4
thick-skinned(noun, adjective, hard, careless, indifferent)
4
unsympathetic(adjective, hard, careless, indifferent, cruel)
3
dull
3
casehardened(adjective, hard, unfeeling, unsympathetic, hardened)
3
cold(adjective, hard, careless, indifferent, cruel)
3
conditioned
3
dead
3
experienced(adjective, skilled, seasoned)
3
hardy(adjective, strong, tough)
3
indifferent(adjective, hard, careless, cruel, apathetic)
3
numb
3
obdurate(adjective, hard, careless, indifferent, cruel)
3
pachydermatous(noun, insensibility)
3
steeled(noun, adjective, hard, unfeeling, unsympathetic)
3
strong(fit, healthy, well, robust, resilient)
3
unresponsive(adjective, hard, careless, indifferent, cruel)
3
veteran(adjective, skilled, experienced, seasoned)
2
acclimated
2
cool
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APASmart Define. (2015). inured thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/inured/thesaurus/synonyms
ChicagoSmart Define. 2015. "inured thesaurus" https://smartdefine.org/inured/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2015, inured thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/inured/thesaurus/synonyms>.
MLASmart Define. "inured thesaurus" 14 April 2015. Web. 23 September 2026. <https://smartdefine.org/inured/thesaurus/synonyms>