holier-than-thou

• 1. 

  ADJ If you describe someone as holier-than-thou, you disapprove of them because they seem to believe that they are more religious or have better moral qualities than anyone else. 自视更圣洁的; 自命清高的 [表不满]

  例：

  He has always sounded holier-than-thou.

  他说话总显得自命清高。