Dictionary.com
definitions
  • synonyms

flabbergast

[flab-er-gast]
See more synonyms for flabbergast on Thesaurus.com
verb (used with object)
  1. to overcome with surprise and bewilderment; astound.
Show More

Origin of flabbergast

1765–75; variant of flabagast (perhaps flabb(y) + aghast)
Related formsflab·ber·gast·er, noun

Synonyms

See more synonyms for on Thesaurus.com
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Related Words

dumbfoundnonplusdisconcertastoundamazeastonishdazestunoverwhelmshockabashconfoundstaggerthrowovercome

Examples from the Web for flabbergast

Historical Examples

  • And nothing has happened to astound or flabbergast him, to send him sprawling with Cheyne-Stokes breathing.

    Europe After 8:15

    H. L. Mencken, George Jean Nathan and Willard Huntington Wright

  • But there had been no need, and Stockdale was too shrewd a man to "barge in" and flabbergast his youthful Sub.

    A Sub and a Submarine

    Percy F. Westerman


British Dictionary definitions for flabbergast

flabbergast

verb (tr)
  1. informal to overcome with astonishment; amaze utterly; astound
Show More

Word Origin

C18: of uncertain origin
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