Overview of verb flabbergast

The verb flabbergast has 1 sense

• flabbergast, boggle, bowl over -- (overcome with amazement; "This boggles the mind!")

Overview of adj flabbergasted

The adj flabbergasted has 1 sense

• dumbfounded, dumfounded, flabbergasted, stupefied, thunderstruck, dumbstruck, dumbstricken -- (as if struck dumb with astonishment and surprise; "a circle of policement stood dumbfounded by her denial of having seen the accident"; "the flabbergasted aldermen were speechless"; "was thunderstruck by the news of his promotion")