Unfeeling or cold-hearted; lacking compassion or sympathy. Used as a na-adjective or noun to describe emotional coldness.
彼は昔の友人を助けなかった。薄情な人だ。
He didn't help an old friend. He's a cold-hearted person.
親が亡くなっても親族が無関心だったのは薄情だと感じた。
I felt it was heartless that relatives were indifferent even after the parents died.
薄情にも見捨てる行為は非難される。
Abandoning someone in such a heartless way is condemned.