Screwup

Alternative forms

• screw-up

Full definition of screwup

Noun

1. (colloquial) A substantial mistake, usually causing problems for more people than just the person or group who made it.
• 1977, John Osborne, White House watch: the Ford years‎, The Ford administration emerged in better shape than it deserved from the fantastic screw-up that preceded the release of the Rockefeller...
2. (colloquial) A person who often makes substantial mistakes.