67 entries under unresponsive topic. ×

1
going with the flow(expression, adjective, idiom, detached, impassive)
1
hard-boiled(adjective, hard, cold, indifferent, detached)
1
hard as nails(expression, adjective, idiom, hard, indifferent)
1
imperceptive(adjective, hard, indifferent, unkind)
1
incurious(adjective, hard, indifferent, unkind)
1
laid-back(adjective, detached, impassive, reticent)
1
listless(adjective, dull, slow, detached, unfeeling)
1
marble(adjective, detached, impassive, insensitive)
1
not responsive(expression, adjective, detached, impassive)
1
phlegmatic(adjective, detached, impassive, laid-back)
1
quiet(adjective, detached, impassive, laid-back)
1
reticent(adjective, detached, impassive, laid-back)
1
rolling with the punches(expression, adjective, idiom, detached, impassive)
1
tactless(adjective, hard, indifferent, unsympathetic, unkind)
1
tough(adjective, hard, indifferent, unfeeling, unsympathetic)
1
unconcerned(adjective, hard, indifferent, unfeeling, unsympathetic)
1
undemonstrative(adjective, detached, impassive, laid-back)
1
unexcitable(adjective, detached, impassive, insensitive)
0
composed(adjective, detached, impassive, dispassionate)
0
crass(adjective, hard, indifferent, unkind)
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APASmart Define. (2016). coldhearted thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/coldhearted/thesaurus/synonyms
ChicagoSmart Define. 2016. "coldhearted thesaurus" https://smartdefine.org/coldhearted/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2016, coldhearted thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/coldhearted/thesaurus/synonyms>.
MLASmart Define. "coldhearted thesaurus" 24 March 2016. Web. 24 September 2026. <https://smartdefine.org/coldhearted/thesaurus/synonyms>