79 entries under heartless topic. ×

2
inhuman(adjective, hard, tough, severe, cruel)
2
insentient(adjective, hard, careless, indifferent, cruel)
2
soulless(adjective, hard, careless, indifferent, cruel)
2
uncompassionate(adjective, mean, hard, tough, severe)
2
unconcerned(adjective, calm, hard, careless, indifferent)
2
unkind(adjective, hard, tough, severe, harsh)
2
unresponsive(adjective, calm, hard, careless, indifferent)
1
anesthetized(adjective, hard, tough, severe, cruel)
1
blind to(expression, adjective, hard, careless, indifferent)
1
brutal(adjective, hard, tough, severe, harsh)
1
cantankerous(adjective, hard, tough, severe, cruel)
1
careless(adjective, hard, indifferent, cruel, apathetic)
1
churlish(adjective, hard, tough, severe, cruel)
1
crotchety(adjective, hard, tough, severe, cruel)
1
deaf to(expression, adjective, hard, careless, indifferent)
1
exacting(adjective, hard, tough, severe, harsh)
1
feelingless(adjective, hard, tough, severe, indifferent)
1
hard-bitten(adjective, hard, careless, indifferent, cruel)
1
hard as nails(expression, adjective, idiom, calm, hard)
1
icy(adjective, hard, cool, tough, severe)
10 years ago|6k views|share |citing 
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>