failure

noun6

1. •
   the state of not being successful in what someone tried or hoped to do

   • For Liverpool, their season will now be regarded as a relative disappointment after failure to add the FA Cup to the Carling Cup and not mounting a challenge to reach the Champions League places. — 2012
2. •
   An object, person or endeavour in a state of failure, has failed at something or incapable of success.
3. •
   Bankruptcy.
4. •
   A condition in which a specified organ does not function well enough to support life.
5. •
   Termination of the ability of an item to perform its required function; breakdown.

   • But as with individual train failures you have to tackle every one as it arises and assume it will happen again, which it will, if you don't do something about it. — 2019
6. •
   Omission to do something, whether or not it was attempted, especially something that ought to have been done.