Nouns

(n)baffledpeople who are frustrated and perplexed“the children's faces clearly expressed the frustration of the baffled”

Adjectives

(s)baffled, befuddled, bemused, bewildered, confounded, confused, lost, mazed, mixed-up, at seaperplexed by many conflicting situations or statements; filled with bewilderment“obviously bemused by his questions”, “bewildered and confused”, “a cloudy and confounded philosopher”, “just a mixed-up kid”, “she felt lost on the first day of school”