/ Thesaurus / B Synonyms of bibliothecal Find synonyms for: Adjective1. bibliothecal, bibliothecarialusage: of or relating to a library or bibliotheca or a librarianWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: feral Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language