early 15c. (implied in disloyally), from Old French desloial, desleal (Modern French déloyal) "treacherous, false, deceitful," from des- (see dis-) + loial (see loyal).
实用例句
1. She was so disloyal to her deputy she made his position untenable.
她对她的副手很不守信义，使得他的职位岌岌可危。
来自柯林斯例句
2. He was accused of being disloyal to the government.
他被指控对政府不忠。
来自《权威词典》
3. The new president carried out a purge of disloyal army officers.