adj. (esp. BrE )
VERBS
▪ be , feel
▪ become , get
ADVERB
▪ extremely , fairly , very , etc.
▪ hopelessly
▪ a little , slightly , etc.
▪
Her ideas are slightly ~.
PHRASES
▪ be ~ up , get ~ up
Muddled is used with these nouns: ↑ brain , ↑ mess , ↑ thinking