A feeling of anger or
resentment that you hold onto at a specific person for something they did that angered you in the past.
Normally, People have good reasons to hold a
grudge, although sometimes they are
irreasonable.
Reasonable
Grudge: I hold a
grudge on the guy that murdered my sister.
Irreasonable Grudge: I hold a grudge on her because she didn't
call me back that one time.