陽ㄧㄤˊyáng奉ㄈㄥˋfèng陰ㄧㄣyīn違ㄨㄟˊwéi

表面上裝著遵守奉行，實際上卻違反不照辦。《官場現形記·第三三回》：「勸戒屬員，嗣後不准再到秦淮河吃酒住夜；倘若陽奉陰違，定行參辦不貸。」似兩面三刀、口是心非反表裡如一

客陽奉陰違

英outward devotion but inner opposition (idiom); to pay lip service, to agree overtly, but oppose in secret