怨恨
yuàn hèn · HSK 7
to resent
怨 resent + 恨 hate — two heart-radical words stacked into one lasting grudge
Both glyphs carry the heart component (心/忄): 怨 leans toward sullen resentment, 恨 toward sharp hatred. Stacked, they name a grudge you keep nursing rather than a flash of anger.
怨 — 夗 (phonetic) + 心 (heart)
A semantic-phonetic compound: the heart radical 心 supplies the meaning (an emotion) while 夗 gives the sound. The original sense was a deep grudge or resentment held in the heart, and the modern meanings 'to resent, blame, complain' all extend from that core feeling.
恨 — heart radical 忄 + 艮 (gěn, phonetic)
恨 is a semantic-phonetic compound. The heart radical 忄 (the side form of 心) signals an emotion or feeling, while 艮 supplies the sound (related to 'gěn/hèn'). Together they convey a strong negative feeling held in the heart — resentment, hatred, or deep regret.