Skip to definition.
Get the FREE one-click dictionary software for Windows or the iPhone/iPad and Android apps

Adjective: umpteen  'úm(p)'teen
  1. Innumerable but many
    "That meant I wouldn't be lying around in some hospital, like so many of them at umpteen bucks a day";
    - umteen [non-standard]

See also: beaucoup [US, dialect], many

Encyclopedia: Umpteen