91 entries under adjective topic. ×

5
stubborn(hard, unfeeling, unsympathetic, hardened)
3
callous(verb, dull, hard, develop)
3
hardened(verb, hard, unfeeling, unsympathetic)
2
hard(unfeeling, unsympathetic, hardened, callous)
2
inflexible(hard, unfeeling, unsympathetic, hardened)
2
inured(hard, unfeeling, unsympathetic, hardened)
2
obdurate(hard, unfeeling, unsympathetic, hardened)
2
thick-skinned(hard, unfeeling, unsympathetic, hardened)
1
caked(verb, jellied, gel, calcify)
1
calcified(verb, jellied, gel, calcify)
1
case-hardened(verb, hard, unfeeling, unsympathetic)
1
coldhearted(hard, unfeeling, unsympathetic, hardened)
1
hard-nosed(hard, unfeeling, unsympathetic, hardened)
1
indurate(verb, dull, develop, blunt)
1
inexcitable(callous, insensibility, unexcitable, hard-as-nails)
1
insensate(hard, unfeeling, unsympathetic, hardened)
1
insensible(hard, unfeeling, unsympathetic, hardened)
1
insensitive(hard, unfeeling, unsympathetic, hardened)
1
obstinate
1
seasoned(hard, unfeeling, unsympathetic, hardened)
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APASmart Define. (2013). casehardened thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/casehardened/thesaurus/synonyms
ChicagoSmart Define. 2013. "casehardened thesaurus" https://smartdefine.org/casehardened/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2013, casehardened thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/casehardened/thesaurus/synonyms>.
MLASmart Define. "casehardened thesaurus" 19 May 2013. Web. 23 September 2026. <https://smartdefine.org/casehardened/thesaurus/synonyms>