Pontifical definition

(1) Puffed up with vanity

"A grandiloquent and boastful manner"

"Overblown oratory"

"A pompous speech"

"Pseudo-scientific gobbledygook and pontifical hooey"- Newsweek

(2) Denoting or governed by or relating to a bishop or bishops

(3) Proceeding from or ordered by or subject to a pope or the papacy regarded as the successor of the Apostles

"Papal dispensation"

(4) The vestments and other insignia of a pontiff (especially a bishop)