arcadian vs bucolic

arcadian is not a noun while bucolic is a noun.

Word	Noun	Adjective	Verb	Adverb
arcadian	No	Yes	No	No
bucolic	Yes	Yes	No	No

As adjectives, arcadian and bucolic are synonyms defined as:

arcadian and bucolic: (used with regard to idealized country life) idyllically rustic

Other synonyms of arcadian include pastoral.

arcadian (noun)	bucolic (noun)
	a short poem descriptive of rural or pastoral life
	a country person

arcadian (adjective)	bucolic (adjective)
(used with regard to idealized country life) idyllically rustic	relating to shepherds or herdsmen or devoted to raising sheep or cattle
	(used with regard to idealized country life) idyllically rustic