As a noun bewilderment
is the state of being bewildered.
As an adverb blankly is
in a blank manner, especially showing no emotion or expression.
bewilderment
English
Noun
(
en noun)
The state of being bewildered.
A confusing or perplexing situation.
blankly
English
Adverb
(-)
in a blank manner, especially showing no emotion or expression