Apocrypha vs Apocryphal

Apocrypha is a noun but Apocryphal is not a noun.

Word	Noun	Adjective	Verb	Adverb
Apocrypha	Yes	No	No	No
Apocryphal	No	Yes	No	No

Apocrypha (noun)	Apocryphal (noun)
14 books of the Old Testament included in the Vulgate (except for II Esdras) but omitted in Jewish and Protestant versions of the Bible; eastern Christian churches (except the Coptic Church) accept all these books as canonical; the Russian Orthodox Church accepts these texts as divinely inspired but does not grant them the same status

Apocrypha (adjective)	Apocryphal (adjective)
	of or belonging to the Apocrypha