恨み
うらみ · urami · JLPT N2 · noun
resentment
urami sounds like you rammed me, and I still resent you for it
The kanji 恨 = 忄 (heart) + 艮 (stubborn, stuck). Resentment is a feeling stuck in the heart that won't move. 恨み is the noun form of 恨む (uramu), to bear a grudge.
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.