turn a deaf ear
US /tɜrn ə dɛf ɪr/
UK /tɜrn ə dɛf ɪr/

1.
mengabaikan, tidak peduli
to ignore someone or something, especially a request or warning
:
•
He always turns a deaf ear to his parents' advice.
Dia selalu mengabaikan nasihat orang tuanya.
•
The government turned a deaf ear to the public's protests.
Pemerintah mengabaikan protes masyarakat.