Synonyms of dumbfounded

dumbfounded 1 of 2

adjective

variants also dumfounded

1

as in stunned

affected with sudden and great wonder or surprise

dumbfounded by the realization that he had just won the grand prize in the multistate lottery

Synonyms & Similar Words

• stunned
• amazed
• shocked
• astonished
• surprised
• dumbstruck
• horrified
• appalled
• astounded
• flabbergasted
• awestruck
• thunderstruck
• stupefied
• startled
• bewildered
• aghast
• dazed
• overwhelmed
• dismayed
• bowled over
• confused
• awed
• blindsided
• awesome
• wide-eyed
• agape
• widemouthed
• open-mouthed

Antonyms & Near Antonyms

• nonchalant
• unruffled
• casual
• blasé

2

as in amazed

filled with amazement or wonder

dumbfounded visitors to the Grand Canyon

Synonyms & Similar Words

• amazed
• wondering
• astonished
• surprised
• bewildered
• awed
• marveling
• astounded
• stunned
• flabbergasted
• awestruck
• puzzled
• open-mouthed
• startled
• bemused
• overwhelmed
• staggered
• stupefied

Antonyms & Near Antonyms

• unimpressed
• disinterested
• indifferent
• unconcerned
• uninterested
• impassive
• dispassionate
• bored
• unemotional
• incurious
• jaded
• emotionless

dumbfounded

2 of 2

verb

variants also dumfounded

past tense of dumbfound

as in surprised

to make a strong impression on (someone) with something unexpected

the surprise ending will dumbfound even the most seasoned mystery reader

Synonyms & Similar Words

• amazed
• surprised
• stunned
• shocked
• astonished
• startled
• flabbergasted
• astounded
• stupefied
• thunderstruck
• rocked
• bewildered
• perplexed
• confused
• befuddled
• nonplussed
• dazed
• floored
• dismayed
• bowled over
• disconcerted
• took aback
• took by surprise
• blindsided
• confounded
• muddled
• jarred
• shook up
• blew away
• discomfited
• knocked for a loop

Example Sentences

Recent Examples of dumbfounded

Adjective

In the book, MacLachlan recalls being utterly dumbfounded at having been asked to do something so oblivious at best and cruel at worst. — Rachel Brodsky, Los Angeles Times, 25 Sep. 2026

Barkley has made cuts in practice that left new teammates dumbfounded. — Zach Berman, New York Times, 11 Sep. 2026

North wasn’t the only one feeling a little dumbfounded by De Niro’s involvement. — Shyla Watson, PEOPLE, 25 Aug. 2026

Lopez stood on third base, dumbfounded, as Young fired the ball back to first base to complete the spectacular inning-ending double play. — Ryan Canfield Outkick, FOXNews.com, 23 Aug. 2026

Burke displayed a dumbfounded grin, then brought the stream to a close. — Nancy Dillon, Rolling Stone, 5 Aug. 2026

Meanwhile, what fascinates aspiring neurologist Makenzie Stovall is the idea that AI is trying to emulate the brain — an organ whose inner workings continue to leave researchers dumbfounded. — ABC News, 3 Aug. 2026

O’Donnell’s dumbfounded silence at the impossible-to-grasp question speaks volumes. — Greg Evans, Deadline, 25 July 2026

She’s supposed to help only with menial tasks, but often ends up helping solve mysteries that leave the police dumbfounded. — Skyler Trepel, Entertainment Weekly, 20 June 2026

Verb

The petition by the legal rights group — which will be appealed to a higher California court — left Laci’s mother dumbfounded and did little to shake her conviction that Peterson was guilty of the murders. — Johnny Dodd, PEOPLE, 15 July 2026

Those unfamiliar with the story will also be dumbfounded by the catalog of mistakes that not only put Stagg behind bars for 14 months, but allowed the real killer to roam free (and kill again) for another two years. — Jon O'Brien, IndieWire, 3 June 2026

Employers are dumbfounded by the state’s restrictiveness. — Brendan Hellweg, Baltimore Sun, 9 Mar. 2026

James Hotchkiss / Reuters Carlos Rodriguez, outside in his robe, was dumbfounded by this show of brute force. — Natasha Korecki, NBC news, 14 Feb. 2026

The president’s vehement reaction and over-the-top attacks left some Republican senators dumbfounded. — Alexander Bolton, The Hill, 12 Feb. 2026

Warren herself is dumbfounded by the bizarre case of mistaken identity. — Benjamin Svetkey, HollywoodReporter, 11 Feb. 2026

Even though officials describe work release as a form of custody, the fact that Brom was getting a measure of freedom outraged and dumbfounded many legislators, law enforcement officials and members of the community with knowledge and memories of the horrific crime. — Matthew Stolle, Twin Cities, 29 Dec. 2025

But now that the project has been abruptly terminated, leaving veterans dumbfounded by the decision. — John Ramos, CBS News, 16 Dec. 2025