cold-heart‧ed /ˌkəʊld ˈhɑːtəd◂ $ ˌkoʊld ˈhɑːr-/
adjective behaving in a way that shows no pity or sympathy ⇒
warm-hearted:
I had no idea you could be so cold-hearted.—cold-heartedly adverb—cold-heartedness noun [uncountable] [TahlilGaran] Dictionary of Contemporary English ▲