1
uninterested(adjective, indifferent, detached, distant, apathetic)
1
unmoved(adjective, mean, hard, cool, unpleasant)
1
unsympathizing(mean, unkind)
1
vindictive(adjective, mean, severe, nasty, harsh)
1
violent
1
virulent(adjective, evil, nasty, harsh, vicious)
1
wanton(adjective, mean, severe, harsh, cruel)
1
wild(adjective, rude, violent, cruel, vicious)
1
accustomed(adjective, hard, unfeeling, unsympathetic, hardened)
1
adamantine
1
along for the ride(expression, adjective, idiom, detached, impassive)
1
amoral(adjective, wicked)
1
anaesthetised
1
antipathetic(adjective, mean, hard, cool, unpleasant)
1
arctic
1
asleep(adjective, hard, tough, severe, cruel)
1
autistic
1
aversive(adjective, mean, hard, cool, unpleasant)
1
awful(adjective, wicked)
1
barbarian(adjective, rude, violent, cruel, vicious)
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APASmart Define. (2016). heartless thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/heartless/thesaurus/synonyms
ChicagoSmart Define. 2016. "heartless thesaurus" https://smartdefine.org/heartless/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2016, heartless thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/heartless/thesaurus/synonyms>.
MLASmart Define. "heartless thesaurus" 24 March 2016. Web. 23 September 2026. <https://smartdefine.org/heartless/thesaurus/synonyms>