it's no use
It is hopeless; there is no chance of this being successful. It's no use, I just can't figure out what's wrong with the car. A: "Come on, keep trying." B: "Oh, it's no use. I'll never be able to ride a bicycle!"
it's no use (doing something)
There is no point or reason in doing or attempting something, as it has no hope of helping or succeeding. I understand that you're upset, but it's no use crying about it! It's no use asking Dave about the numbers—he can't even balance his own check book.
Farlex Dictionary of Idioms. © 2024 Farlex, Inc, all rights reserved.