c. 1400, "want of faith, unbelief in religion; false belief, paganism;" also (early 15c.) "unfaithfulness or disloyalty to a person" (originally to a sovereign, by 16c. to a lover or spouse), from French infidélité, from Latin infidelitatem (nominative infidelitas) "unfaithfulness, faithlessness," noun of quality from infidelis (see infidel).
实用例句
1. The implication that marital infidelity enhances a leader's credibility is preposterous.
婚姻不忠会提升领导人可信度的暗示荒谬之极。
来自柯林斯例句
2. Is infidelity ever forgivable?
不贞的行为可以宽恕吗？
来自柯林斯例句
3. I divorced him for infidelity.
我因他的不忠而与他离婚。
来自柯林斯例句
4. The photo was final proof of her husband's infidelity.
这张照片最终证明了她丈夫的不忠.
来自《简明英汉词典》
5. He seemed more amazed at his wife's infidelity than angry.