- informal
- very many: umpteen things to do
- (as pronoun): umpteen of them came
WordReference Random House Learner's Dictionary of American English © 2026
ump•teen /ˈʌmpˈtin/USA pronunciation
adj. [before a noun]
WordReference Random House Unabridged Dictionary of American English © 2026- Informal Termsinnumerable;
many:She came to his office umpteen times but never really listened to his advice.
ump•teen
(ump′tēn′),USA pronunciation adj. [Informal.]
- Informal Termsinnumerable;many.
- ump(ty), fanciful designation for an indeterminate number (with -ty as in twenty, etc.) + -teen 1915–20
Collins Concise English Dictionary © HarperCollins Publishers::
umpteen /ˌʌmpˈtiːn/ determiner
'umpteen' also found in these entries (note: many are not synonyms or translations):