ㄊㄧㄥˊㄅㄨˋㄨㄣˊtīng’érbùwén

听而不闻
  1. 聽見一樣輕忽小看漠不關心 群眾批評聽而不聞」。

to hear but not react (idiom)​; to turn a deaf ear, to ignore deliberately