pontifical

the vestments and other insignia of a pontiff (especially a bishop)

proceeding from or ordered by or subject to a pope or the papacy regarded as the successor of the Apostles; "papal dispensation"

denoting or governed by or relating to a bishop or bishops

puffed up with vanity; "a grandiloquent and boastful manner"; "overblown oratory"; "a pompous speech"; "pseudo-scientific gobbledygook and pontifical hooey"- Newsweek