82 entries under hardened topic. ×

1
irreverent(adjective, hard, unfeeling, unsympathetic)
1
obtuse(noun, adjective, hard, indifferent, unfeeling)
1
prepared(adjective, hard, unfeeling, unsympathetic)
1
relentless(adjective, mean, strong, hard, tough)
1
resistant(adjective, hard, unfeeling, unsympathetic)
1
seasoned(adjective, hard, unfeeling, unsympathetic)
1
spiritless(adjective, hard, careless, indifferent, cruel)
1
steeled(noun, adjective, hard, unfeeling, unsympathetic)
1
stiff(adjective, hard, severe, rough, firm)
1
torpid(adjective, hard, careless, indifferent, cruel)
1
unaffected(adjective, hard, tough, careless, indifferent)
1
unashamed(adjective, hard, unfeeling, unsympathetic)
1
unimpressionable(adjective, hard, careless, indifferent, cruel)
1
unmoved(adjective, calm, cold, cruel, restrained)
1
unrepenting(adjective, hard, unfeeling, unsympathetic)
1
unsubmissive(adjective, hard, unfeeling, unsympathetic)
1
unsusceptible(noun, adjective, hard, careless, indifferent)
0
barbarous(adjective, cold, cruel, unfeeling, unsympathetic)
0
casehardened(hard, unfeeling, unsympathetic, toughened)
0
coldblooded(cruel, heartless)
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APASmart Define. (2016). hard-boiled thesaurus. Retrieved September 30, 2026, from https://smartdefine.org/hard-boiled/thesaurus/synonyms
ChicagoSmart Define. 2016. "hard-boiled thesaurus" https://smartdefine.org/hard-boiled/thesaurus/synonyms (accessed September 30, 2026).
HarvardSmart Define 2016, hard-boiled thesaurus, Smart Define, viewed 30 September, 2026, <https://smartdefine.org/hard-boiled/thesaurus/synonyms>.
MLASmart Define. "hard-boiled thesaurus" 23 March 2016. Web. 30 September 2026. <https://smartdefine.org/hard-boiled/thesaurus/synonyms>