250 entries under adjective topic. ×

2
relentless(mean, hard, severe, harsh)
2
resistant(hard, unfeeling, unsympathetic, hardened)
2
selfish(unfeeling, insensible)
2
severe(mean, harsh, cruel, unsympathetic)
2
steeled(hard, unfeeling, unsympathetic, hardened)
2
steely(severe, harsh, cold, unfeeling)
2
unkindly(coldhearted, negative emotions)
2
unwarmhearted
1
accustomed(hard, unfeeling, unsympathetic, hardened)
1
atrocious
1
austere(mean, hard, severe, harsh)
1
banemalentous
1
barbarous(mean, hard, severe, harsh)
1
benumbed(hard, cruel, unfeeling, unsympathetic)
1
bestial
1
black-hearted
1
blind to(expression, hard, careless, indifferent)
1
careless(hard, indifferent, cruel, apathetic)
1
closed
1
contemptuous(hard, unfeeling, unsympathetic, hardened)
10 years ago|6.2k views|share |citing 
APASmart Define. (2016). hardhearted thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/hardhearted/thesaurus/synonyms
ChicagoSmart Define. 2016. "hardhearted thesaurus" https://smartdefine.org/hardhearted/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2016, hardhearted thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/hardhearted/thesaurus/synonyms>.
MLASmart Define. "hardhearted thesaurus" 31 March 2016. Web. 26 September 2026. <https://smartdefine.org/hardhearted/thesaurus/synonyms>