223 entries under hard topic. ×

1
bitter(adjective, tough, evil, nasty)
1
cantankerous(adjective, tough, severe, evil)
1
casehardened(verb, adjective, dull, develop)
1
churlish(adjective, tough, severe, rough)
1
compressed(adjective, set, strong, firm)
1
contemptible(adjective, evil, rough, nasty)
1
crotchety(adjective, tough, severe, cruel)
1
cutthroat(adjective, mean, severe, harsh)
1
dangerous(adjective, evil, rough, nasty)
1
dense(adjective, set, strong, firm)
1
despicable(adjective, mean, evil, rough)
1
difficult(adjective, evil, rough, nasty)
1
dirty(adjective, rough, nasty, rude)
1
disagreeable(adjective, mean, tough, evil)
1
disdainful(adjective, unfeeling, unsympathetic, prepared)
1
dishonorable(adjective, evil, rough, nasty)
1
disinterested(adjective, mean, cool, unpleasant)
1
dog-eat-dog(adjective, mean, severe, harsh)
1
down(adjective, evil, rough, nasty)
1
exacting(adjective, tough, severe, rough)
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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>