125 entries under heartless topic. ×

1
unamiable(adjective, hard, tough, severe, cold)
1
uncordial(adjective, hard, tough, severe, cold)
1
unflinching(adjective, mean, severe, harsh, cruel)
1
vindictive(adjective, mean, hard, tough, severe)
0
blind to(expression, adjective, unfeeling, unsympathetic, uncaring)
0
careless(adjective, unfeeling, unsympathetic, uncaring, insensitive)
0
case-hardened(adjective, unfeeling, unsympathetic, uncaring, insensitive)
0
deaf to(expression, adjective, unfeeling, unsympathetic, uncaring)
0
gratuitous(adjective, mean, severe, harsh, cruel)
0
imperturbable(adjective, cold, cruel, unfeeling, unsympathetic)
0
indurated(adjective, unfeeling, unsympathetic, uncaring, insensitive)
0
insentient(adjective, unfeeling, unsympathetic, uncaring, insensitive)
0
inured(adjective, unfeeling, unsympathetic, uncaring, insensitive)
0
ironfisted(adjective, mean, harsh, cruel, vicious)
0
matter-of-fact(adjective, cold, cruel, unfeeling, unsympathetic)
0
matter of fact(expression, idiom, cruel)
0
spiritless(adjective, unfeeling, unsympathetic, uncaring, insensitive)
0
torpid(adjective, unfeeling, unsympathetic, uncaring, insensitive)
0
toughened(adjective, unfeeling, unsympathetic, uncaring, insensitive)
0
uncalled-for(adjective, mean, severe, harsh, cruel)
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APASmart Define. (2016). pitiless thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/pitiless/thesaurus/synonyms
ChicagoSmart Define. 2016. "pitiless thesaurus" https://smartdefine.org/pitiless/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2016, pitiless thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/pitiless/thesaurus/synonyms>.
MLASmart Define. "pitiless thesaurus" 24 March 2016. Web. 25 September 2026. <https://smartdefine.org/pitiless/thesaurus/synonyms>