223 entries under hard topic. ×

6
soulless(adjective, mean, harsh, cold)
6
stern(adjective, mean, tough, severe)
6
toughened(noun, adjective, cruel, unfeeling)
6
unaffected(adjective, cold, indifferent, cruel)
6
unbending(adjective, tough, rough, harsh)
6
unpitying(adjective, mean, cool, severe)
5
hard-nosed(adjective, mean, tough, evil)
5
icy(adjective, mean, cool, tough)
5
iron-hearted(adjective, bad, tough, severe)
5
irreverent(adjective, unfeeling, unsympathetic, prepared)
5
unforgiving(adjective, person, mean, severe)
5
unyielding(adjective, mean, severe, rough)
4
brutish(adjective, evil, nasty, harsh)
4
case-hardened(noun, verb, adjective, dull)
4
contemptuous(adjective, unfeeling, unsympathetic, prepared)
4
hostile(adjective, person, tough, evil)
4
relentless(adjective, mean, severe, evil)
4
uncharitable(adjective, mean, unsympathetic)
4
unfriendly(adjective, evil, rough, nasty)
4
unrelenting(adjective, mean, tough, severe)
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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>