papal vs apostolical

papal and apostolical both are adjectives.

Word	Noun	Adjective	Verb	Adverb
papal	No	Yes	No	No
apostolical	No	Yes	No	No

As adjectives, papal and apostolical are synonyms defined as:

papal and apostolical: proceeding from or ordered by or subject to a pope or the papacy regarded as the successor of the Apostles

Other synonyms of papal include apostolic, pontifical.

papal (adjective)	apostolical (adjective)
proceeding from or ordered by or subject to a pope or the papacy regarded as the successor of the Apostles	of or relating to or deriving from the Apostles or their teachings
	proceeding from or ordered by or subject to a pope or the papacy regarded as the successor of the Apostles