Synonyms of cold-hearted

1 Syllable
hard, harsh, cold
2 Syllables
unkind, heartless
3 Syllables
passionless, detached, hard-hearted, uncordial, unfriendly, unloving, uncaring, unfeeling
4 Syllables
ironhearted, stony-hearted, unamiable, indifferent, compassionless, stonyhearted
5 Syllables
unemotional, unsympathetic, insensitive