Englishcallous
adjective
his callous disregard for the feelings and wishes of others:
heartless, unfeeling, uncaring, cold, cold-hearted, hard, as hard as nails, hard-hearted, with a heart of stone, stony-hearted, insensitive, lacking compassion, hard-bitten, cold-blooded, hardened, case-hardened, harsh, cruel, ruthless, brutal;
unsympathetic, uncharitable, indifferent, unconcerned, unsusceptible, insensible, bloodless, soulless;
informal hard-boiled;
rare indurate, indurated, marble-hearted.
▷antonyms kind, compassionate.