dumfounded

Adjective dumfounded has 1 sense

• dumfounded(s = adj.all) dumbfounded, dumbstricken, dumbstruck, flabbergasted, stupefied, thunderstruck - 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"