106 entries under hard topic. ×

1
impenetrable(adjective, unfeeling, unsympathetic, prepared)
1
imperceptive(adjective, indifferent, unkind, unresponsive)
1
impious(adjective, unfeeling, unsympathetic, prepared)
1
implacable(adjective, mean, severe, harsh)
1
inaccessible(adjective, unfeeling, unsympathetic, prepared)
1
incurious(adjective, indifferent, unkind, unresponsive)
1
indurated(adjective, unfeeling, unsympathetic, hardened)
1
inexorable(adjective, mean, harsh, cold)
1
inflexible(adjective, unfeeling, unsympathetic, response)
1
insensible(adjective, dull, mean, slow)
1
inured(adjective, unfeeling, unsympathetic, hardened)
1
irreverent(adjective, unfeeling, unsympathetic, prepared)
1
killer instinct(expression, adjective, mean, harsh)
1
prepared(adjective, unfeeling, unsympathetic, hardened)
1
relentless(adjective, mean, severe, harsh)
1
remorseless(adjective, mean, severe, harsh)
1
resistant(adjective, unfeeling, unsympathetic, prepared)
1
satanic(adjective, mean, harsh, cold)
1
seasoned(adjective, unfeeling, unsympathetic, prepared)
1
steeled(adjective, unfeeling, unsympathetic, prepared)
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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>