adj.
VERBS
▪ be , seem , sound
▪ become
ADVERB
▪ extremely , fairly , very , etc.
▪ highly
▪
some highly ~ information
▪ increasingly
▪ a little , slightly , etc.
▪ ethically , morally
▪
It sounds a morally ~ proposition.
▪ constitutionally ( esp. AmE ), legally , politically
Dubious is used with these nouns: ↑ advantage , ↑ character , ↑ claim , ↑ distinction , ↑ honour , ↑ legality , ↑ merit , ↑ penalty , ↑ pleasure , ↑ privilege , ↑ proposition , ↑ relevance , ↑ reputation , ↑ tactic , ↑ taste , ↑ validity , ↑ value