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Synonyms

flabbergast

American  
[flab-er-gast] / ˈflæb ərˌgæst /

verb (used with object)

  1. to overcome with surprise and bewilderment; astound.

    Synonyms:
    mystify, confuse, perplex, confound, nonplus, stagger, astonish, amaze

flabbergast British  
/ ˈflæbəˌɡɑːst /

verb

  1. informal to overcome with astonishment; amaze utterly; astound

"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

  • flabbergaster noun

Etymology

Origin of flabbergast

1765–75; variant of flabagast (perhaps flabb(y) + aghast )

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.

Though I generally stuck to the main questline and sidequests, the optional tombs that I sampled were diverting puzzle boxes that sometimes stumped me but didn’t flabbergast me.

From Washington Post • Sep. 10, 2018

Sections on the possibility of artificial consciousness would flabbergast even Philip K. Dick.

From New York Times • Aug. 16, 2018

A feature on jargon in "soccer" - the American terms that leave Brits reeling and the British terms that flabbergast Americans - generated a huge response from readers.

From BBC • Jun. 1, 2013

In the wake of an expanded draft call, thousands of Americans are about to encounter a fact of G.I. life that might flabbergast a veteran of World War II.

From Time Magazine Archive

It takes a lot to flabbergast Jack, as I learned when he was my "Lightning Conductor"; but he certainly did look flabbergasted this time.

From The Lightning Conductor Discovers America by Williamson, C. N. (Charles Norris)