WordReference Random House Learner's Dictionary of American English © 2015
dumb•found /dʌmˈfaʊnd, ˈdʌmˌfaʊnd/USA pronunciation v. [+ object]

    to make speechless with amazement:dumbfounded by all the damage done by the storm.

Collins Concise English Dictionary © HarperCollins Publishers::

dumbfound, dumfound /dʌmˈfaʊnd/ vb
  1. (transitive) to strike dumb with astonishment; amaze
Etymology: 17th Century: from dumb + ( con) found

'dumbfounded' also found in these entries:

Forum discussions with the word(s) "dumbfounded" in the title:

Look up "dumbfounded" at Merriam-Webster
Look up "dumbfounded" at dictionary.com

In other languages: Spanish | French | Italian | Portuguese | German | Swedish | Russian | Polish | Romanian | Czech | Greek | Turkish | Chinese | Japanese | Korean | Arabic

Download free Android and iPhone apps

Android AppiPhone App
Report an inappropriate ad.