bucolic vs rustic

bucolic and rustic both are nouns.

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

As nouns, rustic is a hypernym of bucolic; that is, rustic is a word with a broader meaning than bucolic:

bucolic (noun)	rustic (noun)
a short poem descriptive of rural or pastoral life	an unsophisticated country person
a country person

bucolic (adjective)	rustic (adjective)
relating to shepherds or herdsmen or devoted to raising sheep or cattle	awkwardly simple and provincial
(used with regard to idealized country life) idyllically rustic	characteristic of the fields or country
	characteristic of rural life