223 entries under hard topic. ×

2
deadened(adjective, tough, severe, cruel)
2
evil(adjective, rough, nasty, harsh)
2
feral(adjective, mean, harsh, cruel)
2
ferocious(adjective, mean, evil, rough)
2
inexorable(adjective, mean, severe, evil)
2
nasty(adjective, mean, cool, rough)
2
obstinate(adjective, mean, tough, severe)
2
rugged(adjective, set, strong, tough)
2
shameless(adjective, tough, evil, rough)
2
uncompromising(adjective, mean, severe, rough)
2
unimpressionable(adjective, cruel, detached, unfeeling)
2
unrepenting(adjective, tough, unfeeling, unsympathetic)
2
unstirred(adjective, calm, mean, cool)
2
violent(adjective, severe, rough, nasty)
1
accustomed(adjective, dull, quiet, unfeeling)
1
adamantine(adjective, set, strong, firm)
1
antipathetic(adjective, mean, cool, unpleasant)
1
austere(adjective, mean, tough, harsh)
1
aversive(adjective, mean, cool, unpleasant)
1
bad-tempered(adjective, evil, rough, nasty)
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APASmart Define. (2016). callous thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/callous/thesaurus/synonyms
ChicagoSmart Define. 2016. "callous thesaurus" https://smartdefine.org/callous/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2016, callous thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/callous/thesaurus/synonyms>.
MLASmart Define. "callous thesaurus" 24 March 2016. Web. 26 September 2026. <https://smartdefine.org/callous/thesaurus/synonyms>