lack of success in doing or achieving something
After months of training, the team's failure to win the final match left them disappointed.
He learned more from failure than from all his victories.
✦ Early 1600s: from French ‘faillir’ meaning ‘to fail’ plus the suffix ‘-ure’ forming nouns.
a person or thing that does not succeed
Jason felt like a failure when he lost his job.
The new phone model turned out to be a commercial failure.
a breakdown or stopping of proper working in a machine, system, or part of the body
The engine failure forced the pilot to make an emergency landing.
Sudden power failure plunged the city into darkness.
the act of not doing something that is required or expected
Failure to wear a seat belt can result in a fine.
The company closed for failure to pay taxes.