1
general::
Phrase(s): fall on deaf ears
Fig. [for talk or ideas] to be ignored by the persons they were intended for. • Her pleas for mercy fell on deaf ears; the judge gave her the maximum sentence. • All of Sally’s good advice fell on deaf ears. Walter had made up his own mind.
McGrawhill's American Idioms And Phrasal Verbs
2
general::
Be ignored or disregarded, as in Any advice we give them about remodeling seems to fall on deaf ears. This expression transfers physical inability to hear to someone who does not want to listen. [1400s] Also see TURN A DEAF EAR.
American Heritage Idioms