adjective Informal.

innumerable; many.

Also ump·steen [uhmp-steen] /ˈʌmpˈstin/, um·teen.

Origin of umpteen

1915–20; ump(ty), fanciful designation for an indeterminate number (with -ty as in twenty, etc.) + -teen Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for umpteen

Contemporary Examples of umpteen

Historical Examples of umpteen

  • Well, about ten minutes afterwards most of us were taken with umpteen fits.

  • Zeligs of umpteen disguises and ever changing, shimmering loyalties.

    After the Rain

    Sam Vaknin

  • We've had umpteen extra drills and parades and kit inspections.

    Combed Out

    Fritz August Voigt

  • There's a 'ell of a stunt on—there'll be umpteen slabs for the mortuary.

    Combed Out

    Fritz August Voigt

  • And at that it's five o'clock before I'm landed at a little flag station umpteen miles beyond nowhere.


    Sewell Ford

British Dictionary definitions for umpteen



  1. very manyumpteen things to do
  2. (as pronoun)umpteen of them came
Derived Formsumpteenth, noun, adjective

Word Origin for umpteen

C20: from umpty a great deal (perhaps from -enty as in twenty) + -teen ten
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for umpteen

1917, World War I army slang, from umpty + teen. Related: Umpteenth.

Online Etymology Dictionary, © 2010 Douglas Harper