papal vs apostolic

papal and apostolic both are adjectives.

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

As adjectives, papal and apostolic are synonyms defined as:

papal and apostolic: 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 apostolical, pontifical.

papal (adjective)	apostolic (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