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Definitions

dumbfounded

[duhm-foun-did, duhm-foun-] / dʌmˈfaʊn dɪd, ˈdʌmˌfaʊn- /
ADJECTIVE
astounded, confused
Synonyms
STRONG
amazed astonished bamboozled beat bewildered buffaloed confounded dismayed flabbergasted floored knocked licked nonplused overcome overwhelmed puzzled shocked staggered startled stuck stumped stunned surprised thrown
WEAK
agape aghast blown-away bowled over breathless dumb speechless taken aback thunderstruck
Antonyms
STRONG
aware
WEAK
expectant unsurprised

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.

Ordinary air travelers have been dumbfounded by the chaos.

From The Wall Street Journal • Mar. 1, 2026

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

From Barron's • Feb. 14, 2026

The South Park police force is dumbfounded by the videos, believing they are real.

From Los Angeles Times • Nov. 13, 2025

She said: "So they gave me a wad of leaflets, and then goodbye, shook hands and went out through the door. Well, I was dumbfounded actually."

From BBC • Sep. 12, 2025

They stared, dumbfounded, at the book sitting on the immobile belt.

From "Escape from Mr. Lemoncello's Library" by Chris Grabenstein