disloyalty
n. 不忠实；不义，不贞；背信弃义
复数 disloyalties
例句
Charges had already been made against certain officials suspected of disloyalty.
已对某些被怀疑有不忠行为的官员提出指控。
《柯林斯英汉双解大词典》
When not campaigning, soldiers needed to be occupied; otherwise they represented a potentially dangerous source of friction and disloyalty.
不作战时，士兵需要处于忙碌状态；否则他们就会是危险的摩擦及不忠的潜在来源。
Your solo trip need not imply any disloyalty to family or friends.
你独自去飘游，并不代表你对家庭不忠，对朋友不诚。
