Wytrwałość - Brak wysiłku

to fail to keep on doing something

to decide against doing something

to put an stop to an activity one knows has very little or no chance of achieving success

to make a minimal effort to do something, particularly in order to help someone

to try one's best to improve something that is not good or satisfactory enough

to lose one's enthusiasm or motivation, making one incapable of finishing a job or task

to stop doing something, particularly when there is no hope of success

achieved or delivered to one easily or without making any effort

to neglect important issues and handle less important ones instead