604 entries under adjective topic. ×

19
merciless(person, mean, hard, tough)
19
numb(noun, verb, dull, hard)
19
obdurate(person, mean, hard, cool)
17
harsh(mean, hard, cool, tough)
17
inhuman(mean, bad, hard, tough)
16
thick-skinned(noun, calm, mean, hard)
16
uncompassionate(person, mean, hard, cool)
16
emotionless(bad, cool, cold, indifferent)
16
pitiless(mean, hard, tough, severe)
16
unresponsive(calm, person, quiet, mean)
15
brutal(mean, hard, tough, severe)
15
indurate(verb, dull, close, set)
15
unkind(mean, bad, hard, cool)
14
hardhearted(mean, hard, severe, attitude)
14
impassive(calm, hard, cool, cold)
14
unconcerned(calm, mean, hard, cool)
13
impervious(noun, calm, bad, cold)
13
inured(noun, hard, cruel, unfeeling)
13
remorseless(mean, harsh, cold, cruel)
12
cold-hearted(hard, tough, severe, attitude)
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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>