outward obedience, inward betrayal
A yojijukugo describing someone who appears to follow orders or agree on the surface but harbors rebellious or treacherous intentions underneath. Often used in political, workplace, or historical contexts.
He takes an attitude of outward obedience but inward betrayal toward his boss.
面従腹背の部下に悩まされた。
I was troubled by a subordinate who pretended to obey but secretly worked against me.