disloyalty
🇺🇸
/dɪsˈlɔɪəlti/
🇬🇧
/dɪsˈlɔɪəlti/
When someone doesn't support or betrays the ones they should be loyal to.
The employee's disloyalty to the company was evident when he shared confidential information with a competitor.
員工對公司的不忠在向競爭對手共享機密資訊時表現得很清楚。