dumbfounded vs dumbstricken

dumbfounded and dumbstricken both are adjectives.

Word	Noun	Adjective	Verb	Adverb
dumbfounded	No	Yes	No	No
dumbstricken	No	Yes	No	No

As adjectives, dumbfounded and dumbstricken are synonyms defined as:

dumbfounded and dumbstricken: as if struck dumb with astonishment and surprise

Other synonyms of dumbfounded include dumbstruck, dumfounded, flabbergasted, stupefied, thunderstruck.

dumbfounded (adjective)	dumbstricken (adjective)
as if struck dumb with astonishment and surprise	as if struck dumb with astonishment and surprise