adj.
VERBS
▪ be , feel , look , sound
▪ remain
ADVERB
▪ completely , totally , utterly
PREPOSITION
▪ about
▪
Officials say they're ~ about the cause of the gas explosion.
▪ as to
▪
The referee remains ~ as to why his decision caused so much anger.
▪ by
▪
The doctors are completely ~ by her illness.
Baffled is used with these nouns: ↑ expression , ↑ look