disloyalty

n. /dɪsˈlɔɪəlti/ B2

不忠；背叛

The state of not being loyal to someone or something.

仙境例句

The Queen called it disloyalty when a soldier sneezed during her speech.

王后讲话时有个士兵打了个喷嚏，王后说这是不忠。