bewildered
Bewilderingly, he seemed to blame his own supporters for the team's defeat.
For someone who claims to be religious, he seems bewilderingly ignorant about the beliefs of his own faith.
The dynamics of their relationship are bewilderingly complex.
The plot is bewilderingly long and doesn't come to any satisfying conclusion.

SMART Vocabulary: related words and phrases

Confusion, confusing and feeling confused
addled
all of a doodahidiom
all over the placeidiom
alphabet soup
at seaidiom
discombobulation
disordered
disorganization
disorganized
disorientating
muddle something up
muddle-headed
muddled
mush
muzzily
unaccountable
unaccountably
unexplainable
unexplained
unsearchable