128 entries under hard topic. ×

2
deadened(adjective, tough, severe, cruel)
2
impassible(insensitive, unsusceptible)
2
indurated(adjective, careless, indifferent, cruel)
2
inhuman(adjective, tough, severe, cruel)
2
insentient(adjective, careless, indifferent, cruel)
2
seasoned(adjective, unfeeling, unsympathetic, hardened)
2
soulless(adjective, careless, indifferent, cruel)
2
uncompassionate(adjective, mean, tough, severe)
2
unconcerned(adjective, calm, careless, indifferent)
2
unkind(adjective, tough, severe, harsh)
2
unresponsive(adjective, calm, careless, indifferent)
1
adamant(adjective, mean, tough, harsh)
1
anesthetized(adjective, tough, severe, cruel)
1
blind to(expression, adjective, careless, indifferent)
1
brutal(adjective, tough, severe, harsh)
1
bullhead(adjective, mean, tough, harsh)
1
cantankerous(adjective, tough, severe, cruel)
1
careless(adjective, indifferent, cruel, apathetic)
1
churlish(adjective, tough, severe, cruel)
1
crotchety(adjective, tough, severe, cruel)
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APASmart Define. (2016). thick-skinned thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/thick-skinned/thesaurus/synonyms
ChicagoSmart Define. 2016. "thick-skinned thesaurus" https://smartdefine.org/thick-skinned/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2016, thick-skinned thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/thick-skinned/thesaurus/synonyms>.
MLASmart Define. "thick-skinned thesaurus" 28 March 2016. Web. 26 September 2026. <https://smartdefine.org/thick-skinned/thesaurus/synonyms>