387 entries under adjective topic. ×

1
barbarian(rude, violent, cruel, vicious)
1
base
1
blank(cool, detached, sober, unfeeling)
1
blind to(verb, expression, phrasal verb, hard)
1
cantankerous(hard, tough, severe, cruel)
1
careless(hard, indifferent, cruel, apathetic)
1
churlish(hard, tough, severe, cruel)
1
cold blooded(aloof, unfeeling, senseless)
1
collected(cool, blank, aloof, unemotional)
1
composed(cool, detached, blank, aloof)
1
contemptuous(hard, unfeeling, unsympathetic, hardened)
1
cool cat(expression, cool, detached, blank)
1
criminal
1
crotchety(hard, tough, severe, cruel)
1
crude(rude, violent, cruel, vicious)
1
cutthroat(mean, hard, severe, harsh)
1
dangerous
1
dead hearted(aloof, unfeeling, senseless)
1
deadened(hard, tough, severe, cruel)
1
deadpan(cool, detached, blank, sober)
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APASmart Define. (2016). heartless thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/heartless/thesaurus/synonyms
ChicagoSmart Define. 2016. "heartless thesaurus" https://smartdefine.org/heartless/thesaurus/synonyms (accessed September 27, 2026).
HarvardSmart Define 2016, heartless thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/heartless/thesaurus/synonyms>.
MLASmart Define. "heartless thesaurus" 24 March 2016. Web. 27 September 2026. <https://smartdefine.org/heartless/thesaurus/synonyms>