怨毒 Traditional form: 怨毒 Pinyin (reading): yuàndú Definitions: bitter resentment; rancor Characters: 怨 - to blame, to complain, to hate; enmity, resentment 毒 - poison, venom; drug, narcotic Traditional characters: 怨 - to blame, to complain, to hate; enmity, resentment 毒 - poison, venom; drug, narcotic