Synonyms

dumbfound

American

[duhm-found, duhm-found] / dʌmˈfaʊnd, ˈdʌmˌfaʊnd /

Also dumbfounder, or dumfound

verb (used with object)

to make speechless with amazement; astonish.

Synonyms:

stagger, astound, confound, amaze

dumbfound British

/ dʌmˈfaʊnd /

verb

(tr) to strike dumb with astonishment; amaze

"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

Other Word Forms

dumbfounderment noun
dumfounderment noun

Etymology

Origin of dumbfound

First recorded in 1645–55; dumb + (con)found

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

"So it's pretty ludicrous... I'm dumbfounded in terms of the stark contrast that exists currently in the landscape of sport and swimming."

From BBC

And though some of the names listed have since been implicated in his crimes, or at least knew about his conviction, many others were dumbfounded to be mentioned at all because they’d never met Epstein.

From The Wall Street Journal

Ordinary air travelers have been dumbfounded by the chaos.

From The Wall Street Journal

I was so dumbfounded I couldn’t even think straight, much less say anything.

From Literature

American skater Nathan Chen, the Beijing men's individual gold medallist, was dumbfounded, saying: "What a shock".

From Barron's

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023