give up on

[ɡɪv ʌp ɒn]

Meaning

  • to stop being naïve that someone or something will become better;
  • to stop your efforts to help someone because there is no way to change them.

Examples 👇

Why You Can’t Give Up On Humanity. civilbeat.org

Billionaire Bill Ackman just dumped his stake in Warren Buffett's Berkshire Hathaway. Maybe it's time for us to give up on him too. ccn.com

I gave up on him finally. I had been trying to give him everything: education, good living conditions, freedom to choose hobbies and activities. But all he needed was to play computer games and spend time online.