What does lost cause mean?

A lost cause is a situation, goal, or person that will not succeed or improve despite all your efforts or assistance.

 

Lost cause in a sentence examples
We’ve tried and tried but they won’t change their decision, so it’s a lost cause now, I’m afraid.

Most of his teachers gave up on him as a lost cause.

 

On a related note, if you can’t make up your mind if loss or lost is the word you need, remember that “loss” always functions as a noun.

You can use QuillBot’s free Paraphraser to help you find alternative ways of expressing “lost cause” in your specific context.