Try Our Apps


World Series Quiz


or dumfound

[duhm-found, duhm-found] /dʌmˈfaʊnd, ˈdʌmˌfaʊnd/
verb (used with object)
to make speechless with amazement; astonish.
Also, dumbfounder, dumfounder.
Origin of dumbfound
1645-55; dumb + (con)found
Related forms
dumbfounderment, dumfounderment, noun
amaze, confound, astound, stagger. Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2016.
Cite This Source
Examples from the Web for dumbfounded
Contemporary Examples
Historical Examples
  • I was dumbfounded at this extraordinary command and felt that I was placed in an extremely awkward position.

    Born Again Alfred Lawson
  • At the sight of the cat he was so dumbfounded that his reason wavered for a moment.

    The Story of a Cat mile Gigault de La Bdollire
  • He had drawn me upon his knee; I sat there silent, flushing and dumbfounded.

  • Nor was it the mere sight of this lumber that dumbfounded me.

    The Riddle of the Sands Erskine Childers
  • Over their dumbfounded heads he heard young Ryder's mocking laugh.

    The Fortieth Door Mary Hastings Bradley
British Dictionary definitions for dumbfounded


(transitive) to strike dumb with astonishment; amaze
Word Origin
C17: from dumb + (con)found
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
Cite This Source
Word Origin and History for dumbfounded

past participle adjective from dumbfound.



1650s, from dumb (adj.) + ending from confound.

Online Etymology Dictionary, © 2010 Douglas Harper
Cite This Source

Word of the Day

Difficulty index for dumbfound

Few English speakers likely know this word

Word Value for dumbfounded

Scrabble Words With Friends

Nearby words for dumbfounded