WordReference Random House Learner's Dictionary of American English © 2017
dumb•found /dʌmˈfaʊnd, ˈdʌmˌfaʊnd/USA pronunciation
v. [~ + object]WordReference Random House Unabridged Dictionary of American English © 2017
- to make speechless with amazement:dumbfounded by all the damage done by the storm.
(dum found′, dum′found′),USA pronunciation v.t.
- to make speechless with amazement;
- dumb + (con)found 1645–55
amaze, confound, astound, stagger.
Collins Concise English Dictionary © HarperCollins Publishers::
dumbfound, dumfound /dʌmˈfaʊnd/ vb
Etymology: 17th Century: from dumb + ( con) found
- (transitive) to strike dumb with astonishment; amaze
'dumbfounded' also found in these entries: