397 entries under adjective topic. ×

6
thick-skinned(calm, mean, hard, tough)
6
uncompassionate(mean, hard, tough, severe)
6
unemotional(mean, hard, tough, severe)
5
barbarous(mean, hard, tough, evil)
5
cool(calm, indifferent, restrained, detached)
5
dispassionate(calm, cold, indifferent, cruel)
5
emotionless(bad, cold, detached, aloof)
5
flinty(evil, nasty, harsh, vicious)
5
impassive(calm, indifferent, restrained, detached)
5
inexorable(mean, hard, tough, evil)
5
relentless(mean, hard, tough, evil)
5
thoughtless(mean, nasty, ill, hostile)
5
unconcerned(calm, indifferent, restrained, detached)
5
unmoved(calm, cold, indifferent, cruel)
5
unsparing
4
adamant(mean, hard, tough, harsh)
4
brutish(evil, nasty, harsh, vicious)
4
chilly(person, indifferent, feelings, detached)
4
icy(person, hard, tough, severe)
4
inconsiderate(mean, nasty, ill, hostile)
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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>