604 entries under adjective topic. ×

4
passive(indifferent, unconcerned, uncaring, insensitive)
4
relentless(mean, hard, severe, evil)
4
stolid(noun, dull, quiet, cool)
4
thoughtless
4
uncharitable(mean, hard, unsympathetic)
4
unconscious(unfeeling, senseless, numb, insensitive)
4
unfriendly(hard, evil, rough, nasty)
4
unrelenting(mean, hard, tough, severe)
4
unremorseful
4
unsentimental(hardened, toughened, cynical, hard-boiled)
4
untouched(calm, mean, hard, cool)
4
vicious(mean, hard, evil, rough)
3
antihumanitarian(aroused negative, aroused bad feelings)
3
arrogant
3
as cold as charity(bad, cold, aloof, no feelings)
3
audacious
3
benumbed(hard, tough, severe, cruel)
3
brittle(aroused negative, aroused bad feelings)
3
careless(hard, indifferent, cruel, unfeeling)
3
cheeky
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APASmart Define. (2016). callous thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/callous/thesaurus/synonyms
ChicagoSmart Define. 2016. "callous thesaurus" https://smartdefine.org/callous/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2016, callous thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/callous/thesaurus/synonyms>.
MLASmart Define. "callous thesaurus" 24 March 2016. Web. 25 September 2026. <https://smartdefine.org/callous/thesaurus/synonyms>