pent-up resentment; grudges and hard feelings
Refers to accumulated bitterness and ill will, often from past grievances. Commonly used in phrases like 恨みつらみを言う (to air one's grievances) or 恨みつらみがある (to harbor resentment).
When he drinks, he starts airing old grudges.
Years of pent-up resentment have built up between the two.
Search-only form; not a standard spelling.
Variant using 怨み; less common and may carry a stronger nuance of deep grudge.