As adjectives the difference between dumbfounded and dumbstruck
is that dumbfounded is shocked and speechless while dumbstruck is so shocked as to be unable to speak.
As a verb dumbfounded
is past tense of dumbfound.
dumbfounded
English
Alternative forms
* dumfounded
Synonyms
* amazed, astonished, astounded, confounded, flabbergasted, perplexed, shocked, speechless, stunned, surprised
Verb
(head)
(dumbfound)
dumbstruck
English
Adjective
(-)
so shocked as to be unable to speak