dumbstruck
— Adjective
– English
~ as if struck dumb with astonishment and surprise; "a circle of policemen stood dumbfounded by her denial of having seen the accident"; "the flabbergasted aldermen were speechless"; "was thunderstruck by the news of his promotion"
dumfounded
— Adjective
– English
~ as if struck dumb with astonishment and surprise; "a circle of policemen stood dumbfounded by her denial of having seen the accident"; "the flabbergasted aldermen were speechless"; "was thunderstruck by the news of his promotion"
dumfounding
— Adjective
– English
~ bewildering or striking dumb with wonder