92 entries under tough topic. ×

3
benumbed(adjective, hard, severe, cruel)
3
indurate(adjective, mean, hard, harsh)
3
merciless(adjective, hard, severe, cruel)
3
pitiless(adjective, hard, severe, cruel)
3
ruthless(adjective, hard, severe, cruel)
2
asleep(adjective, hard, severe, cruel)
2
cold fish(expression, adjective, calm, mean, hard)
2
deadened(adjective, hard, severe, cruel)
2
inhuman(adjective, hard, severe, cruel)
2
uncompassionate(adjective, mean, hard, severe)
2
unkind(adjective, hard, severe, harsh)
2
unsparing(adjective, harsh, grim, painful)
1
adamant(adjective, mean, hard, harsh)
1
anesthetized(adjective, hard, severe, cruel)
1
austere(adjective, harsh, cruel, detached)
1
brutal(adjective, hard, severe, harsh)
1
bullhead(adjective, mean, hard, harsh)
1
cantankerous(adjective, hard, severe, cruel)
1
churlish(adjective, hard, severe, cruel)
1
crotchety(adjective, hard, severe, cruel)
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APASmart Define. (2016). thick-skinned thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/thick-skinned/thesaurus/synonyms
ChicagoSmart Define. 2016. "thick-skinned thesaurus" https://smartdefine.org/thick-skinned/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2016, thick-skinned thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/thick-skinned/thesaurus/synonyms>.
MLASmart Define. "thick-skinned thesaurus" 28 March 2016. Web. 28 September 2026. <https://smartdefine.org/thick-skinned/thesaurus/synonyms>