discredit

vt.

1. 使丟臉；敗壞……的名聲
   She discredited his good name with ugly gossip.

   她散布惡毒的流言蜚語，壞敗他的好名聲。

2. 使不足信
   New information discredited the old report.

   新消息證實原來的報導不真實。

3. 不信，懷疑
   There was good reason to discredit the witness.

   有充分理由不相信那位證人。