104 entries under unresponsive topic. ×

5
unconcerned(adjective, calm, indifferent, restrained, detached)
5
unmoved(adjective, calm, cold, indifferent, cruel)
3
chill(adjective, bad, cold, detached, aloof)
3
coldhearted(adjective, person, mean, hard, feelings)
3
detached(adjective, person, hard, indifferent, feelings)
3
impervious(adjective, calm, bad, cold, restrained)
3
marble(adjective, bad, cold, detached, aloof)
3
untouched(adjective, calm, restrained, unconcerned, subdued)
2
cold fish(expression, adjective, calm, mean, hard)
2
reserved(adjective, calm, person, indifferent, feelings)
2
restrained(adjective, calm, subdued, impassive)
2
undemonstrative(adjective, detached, impassive, laid-back)
2
unenthusiastic(adjective, calm, person, feelings, restrained)
2
unstirred(adjective, calm, restrained, unconcerned, subdued)
1
along for the ride(expression, adjective, idiom, detached, impassive)
1
blah(adjective, detached, impassive, laid-back)
1
calm(adjective, restrained, unconcerned, subdued, impassive)
1
casual(adjective, calm, indifferent, restrained, detached)
1
collected(adjective, calm, restrained, subdued, impassive)
1
deadpan(adjective, detached, impassive, laid-back)
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APASmart Define. (2016). hard-hearted thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/hard-hearted/thesaurus/synonyms
ChicagoSmart Define. 2016. "hard-hearted thesaurus" https://smartdefine.org/hard-hearted/thesaurus/synonyms (accessed September 27, 2026).
HarvardSmart Define 2016, hard-hearted thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/hard-hearted/thesaurus/synonyms>.
MLASmart Define. "hard-hearted thesaurus" 24 March 2016. Web. 27 September 2026. <https://smartdefine.org/hard-hearted/thesaurus/synonyms>