박정해요 · 박정했어요 · 박정한 (+noun)
heartless, cold, unkind
Example
어려울 때 도와주지 않다니 너무 박정해요.
Not helping me when I was struggling is so heartless.
Word parts
박 thin+정 feeling
Literally 'thin feelings'.
Good to know
Often 박정하게 굴다 'to treat someone coldly'; the opposite is 다정하다.
Related words