uncompassionate

aloof antipathetic apathetic aversive callous cold cold-blooded cool cruel disinterested frigid halfhearted hard harsh heartless icy indifferent insensitive lukewarm mean nasty obdurate repellent repugnant stony tough uncaring uncharitable unconcerned uncongenial unemotional unfeeling unkind unmoved unpitying unpleasant unresponsive unstirred untouched