bibliothecal vs bibliothecarial

bibliothecal and bibliothecarial both are adjectives.

Word	Noun	Adjective	Verb	Adverb
bibliothecal	No	Yes	No	No
bibliothecarial	No	Yes	No	No

As adjectives, bibliothecal and bibliothecarial are synonyms defined as:

bibliothecal and bibliothecarial: of or relating to a library or bibliotheca or a librarian

bibliothecal (adjective)	bibliothecarial (adjective)
of or relating to a library or bibliotheca or a librarian	of or relating to a library or bibliotheca or a librarian