1
resentment;grudge;pent-up anger;frustration;bitterness
Other forms
うっ憤 【うっぷん】 · 欝憤 【うっぷん】 (rarely used kanji form)
1
to vent one's frustration;to relieve one's pent-up anger;to let off one's pent-up feelings;to let off steam
Other forms
うっぷんを晴らす 【うっぷんをはらす】 · 鬱憤をはらす 【うっぷんをはらす】 (search-only kanji form)