89 entries under callous topic. ×

3
sour(adjective, mean, severe, nasty, cruel)
2
dangerous(adjective, nasty, cruel, wicked, uncaring)
2
despicable(adjective, mean, nasty, unpleasant, cruel)
2
infamous(adjective, nasty, cruel, behavior, uncaring)
2
obdurate(adjective, mean, hard, cool, tough)
2
shameful(adjective, wrong, nasty, unpleasant, awful)
2
shameless(adjective, wrong, nasty, cruel, wicked)
2
snide(adjective, mean, nasty, cruel, hateful)
2
thick-skinned(adjective, hard, tough, severe, harsh)
2
unscrupulous(adjective, nasty, cruel, wicked, uncaring)
2
vile(adjective, mean, bad, wrong, evil)
1
bad-tempered(adjective, mean, nasty, unpleasant, cruel)
1
bloodless(adjective, hard, indifferent, unfeeling, unemotional)
1
cantankerous(adjective, mean, bad, hard, tough)
1
cold fish(expression, adjective, hard, tough, severe)
1
contemptible(adjective, wrong, nasty, cruel, thoughtless)
1
crass(adjective, hard, indifferent, thoughtless, unresponsive)
1
dirty(adjective, mean, nasty, unpleasant, cruel)
1
dishonorable(adjective, nasty, cruel, thoughtless, rotten)
1
feelingless(adjective, hard, tough, severe, indifferent)
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APASmart Define. (2016). unkind thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/unkind/thesaurus/synonyms
ChicagoSmart Define. 2016. "unkind thesaurus" https://smartdefine.org/unkind/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2016, unkind thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/unkind/thesaurus/synonyms>.
MLASmart Define. "unkind thesaurus" 31 March 2016. Web. 24 September 2026. <https://smartdefine.org/unkind/thesaurus/synonyms>