1.
[syn: dumbfounded, dumfounded, flabbergasted, stupefied, thunderstruck, dumbstruck, dumbstricken]
The Collaborative International Dictionary of English v.0.48:
dumbfounded \dumbfounded\ adj.
1. same as astounded.
Syn: amazed, astonied, astonished, astounded, flabbergasted,
stunned, stupefied, thunderstruck.
[WordNet 1.5]
2. astonished and confounded.
Syn: amazed, dumfounded.
[WordNet 1.5]
WordNet (r) 3.0 (2006):
dumbfounded
adj 1: 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" [syn: dumbfounded, dumfounded,
flabbergasted, stupefied, thunderstruck,
dumbstruck, dumbstricken]