88 entries under indifferent topic. ×

3
forbidding(adjective, person, hard, tough, harsh)
3
self-centered(adjective, unsympathetic, inattentive, uninterested)
2
cold fish(expression, adjective, calm, mean, hard)
2
remote(adjective, person, feelings, detached)
2
reserved(adjective, calm, person, feelings)
2
standoffish(adjective, person, feelings, detached)
2
withdrawn(adjective, person, feelings, detached)
1
above(adjective, detached, distant, remote)
1
apart(adjective, detached, distant, remote)
1
blind(adjective, unsympathetic, inattentive, uninterested)
1
carefree apathetic(expression, adjective, unsympathetic, inattentive)
1
casual(adjective, calm, restrained, detached)
1
deaf(adjective, unsympathetic, inattentive, uninterested)
1
distant(adjective, detached, weary, apathetic)
1
feckless(adjective, unsympathetic, inattentive, uninterested)
1
forgetful(adjective, unsympathetic, inattentive, uninterested)
1
hardboiled(adjective, detached, stiff, distant)
1
haughty(adjective, detached, distant, remote)
1
incurious(adjective, detached, weary, distant)
1
lackadaisical(adjective, unsympathetic, inattentive, uninterested)
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APASmart Define. (2016). hard-hearted thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/hard-hearted/thesaurus/synonyms
ChicagoSmart Define. 2016. "hard-hearted thesaurus" https://smartdefine.org/hard-hearted/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2016, hard-hearted thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/hard-hearted/thesaurus/synonyms>.
MLASmart Define. "hard-hearted thesaurus" 24 March 2016. Web. 28 September 2026. <https://smartdefine.org/hard-hearted/thesaurus/synonyms>