aspersion

她的对手试图通过质疑数据来诋毁她的职业操守。

Her rival tried to cast an ___aspersion on her professional integrity by questioning the data.

他在孩子面前无端诋毁前妻的人品。

He unfairly cast an ___aspersion on his ex-wife's character in front of their children.

反对党在新闻发布会上对市长的诚信提出了诋毁。

The opposition party cast an ___aspersion on the mayor's honesty during the press conference.