callous, detached, frigid, hardhearted, harsh, heartless, indifferent, inhuman, insensitive, stony-hearted, uncaring, unfeeling, unkind, unsympathetic. cold-heartedness. Synonyms of cold 17 related questions found What is a cold word? chilly, cool, freezing, icy, snowy, icy-cold, glacial, wintry...