Adjectives

(s)bleary, blurred, blurry, foggy, fuzzy, hazy, muzzyindistinct or hazy in outline“a landscape of blurred outlines”, “the trees were just blurry shapes”
(s)addled, befuddled, muddled, muzzy, woolly, wooly, woolly-headed, wooly-mindedconfused and vague; used especially of thinking“muddleheaded ideas”, “your addled little brain”, “woolly thinking”, “woolly-headed ideas”