Talk to a brick wall

Talk to a brick wall
Talk to a stone wall / Preach to the wind / Waste one's breath / For one's words to fall on deaf ears

Parlare al muro 

Parlare al muro
Talk to a stone wall / Preach to the wind / Waste one's breath / For one's words to fall on deaf ears

Parlare al muro 

Parlare al muro
Meanings
Fig.: talking to someone who doesn't listen or even pay attention
Examples
You never listen to me: talking to you is like talking to a stone wall
Parlare con te รจ come parlare al muro: non ascolti mai!
Robert tried to change Father's mind about letting him use the car Saturday night, but it was like talking to a brick wall
Roberto ha provato a far cambiare idea a suo padre sul fatto di
lasciargli usare la macchina sabato sera, ma era come parlare al muro