forbidden vs proscribed

forbidden and proscribed both are adjectives.

Word	Noun	Adjective	Verb	Adverb
forbidden	No	Yes	No	No
proscribed	No	Yes	No	No

As adjectives, forbidden and proscribed are synonyms defined as:

Other synonyms of forbidden include out, prohibited, taboo, tabu, verboten.

forbidden (adjective)	proscribed (adjective)
excluded from use or mention	excluded from use or mention