223 entries under hard topic. ×

19
merciless(adjective, person, mean, tough)
19
numb(noun, verb, adjective, dull)
19
obdurate(adjective, person, mean, cool)
17
harsh(adjective, mean, cool, tough)
17
inhuman(adjective, mean, bad, tough)
16
thick-skinned(noun, adjective, calm, mean)
16
uncompassionate(adjective, person, mean, cool)
16
pitiless(adjective, mean, tough, severe)
16
unresponsive(adjective, calm, person, quiet, mean)
15
brutal(adjective, mean, tough, severe)
15
unkind(adjective, mean, bad, cool)
14
hardhearted(adjective, mean, severe, attitude)
14
impassive(adjective, calm, cool, cold)
14
unconcerned(adjective, calm, mean, cool)
13
inured(noun, adjective, cruel, unfeeling)
12
cold-hearted(adjective, tough, severe, attitude)
12
insensate(noun, adjective, bad, tough)
11
aloof(adjective, calm, mean, cool)
11
insentient(adjective, bad, cold, cruel)
10
frigid(adjective, mean, cool, harsh)
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APASmart Define. (2016). callous thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/callous/thesaurus/synonyms
ChicagoSmart Define. 2016. "callous thesaurus" https://smartdefine.org/callous/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2016, callous thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/callous/thesaurus/synonyms>.
MLASmart Define. "callous thesaurus" 24 March 2016. Web. 24 September 2026. <https://smartdefine.org/callous/thesaurus/synonyms>