Dictionary / Vocabulary / 聞く耳を持たない
きくみみをもたない
to turn a deaf ear to; to not listen to; to not get the message
Also written 聞く耳をもたない
私は彼に言い聞かせているが、彼はそもそも聞く耳を持たない。
I've tried reasoning with him but he just won't listen.