不安其室 bù ān qí shì 🔊 to be unfaithful + Keep this word Meanings bù ān qí shì (idiom) (of a married woman) to be unfaithful; to have extramarital affairs Its characters 不bùnot; noHSK 1安āncalm; peacefulHSK 5其qíhisHSK 5室shìroomHSK 3