The participles of the verb "to dumbfound" are dumbfounding and dumbfounded. The choice would depend on whether the noun is performing the action or responding to it, with dumbfoundedthe more common.
dumbfounded
No, it is a verb or a noun (to go around, to surround; a round shape). The adjective form is circular.
It is an adjective.It is a an adjective.
No, it is an adverb. The adjective is clumsy.
It can be. "Ideal" is an adjective and a noun.
dumbfounded
I was dumbfound when Jimmy cheated yesterday
Yes.
The math problem left him dumbfounded.
astonish, bewilder, blow away, bowl over*, dumbfound, electrify, flabbergast*, impress, move, perplex, shock, stagger, startle * = not used in a real dictionary
No, it is a verb or a noun (to go around, to surround; a round shape). The adjective form is circular.
It is an adjective.It is a an adjective.
astonish, bewilder, blow away, bowl over*, confound, confuse, daze, dumbfound, flabbergast, knock over with feather, overwhelm, shock, stagger, startle, stun, stupefy, surprise, take aback
An adjective
it is an adjective!
No. It is not an adjective. An adjective describes something.
Cautious IS an adjective. An adjective is an action!