Feelings of anger or resentment toward someone because of something they did in the past that you can't forget.
From Old French 'grucier' meaning 'to murmur' or 'to complain.' The word evolved in Middle English to mean a persistent, harbored feeling of ill will, adding the sense of prolonged bitterness.
Psychologists have shown that holding grudges literally makes you unhealthier—your body releases stress hormones when you think about people you resent, so grudges are basically a form of self-punishment that benefits no one, yet humans are incredibly good at maintaining them.
Complete word intelligence in one call. Free tier — 50 lookups/day.