JMdict: 1159230

遺恨 【いこん】

  1. [n] grudge; ill will; enmity
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Kanji in this word:

Kanji Meanings On Readings Kun Readings
Bequeath, Leave Behind, Reserve イ, ユイ のこ.す
Regret, Bear A Grudge, Resentment, Malice, Hatred コン うら.む, うら.めしい