bumpkin vs rube

bumpkin and rube both are nouns.

Word	Noun	Adjective	Verb	Adverb
bumpkin	Yes	No	No	No
rube	Yes	No	No	No

As nouns, bumpkin and rube are synonyms defined as:

bumpkin and rube: a person who is not very intelligent or interested in culture

Other synonyms of bumpkin include chawbacon, hayseed, hick, yahoo, yokel.

bumpkin (noun)	rube (noun)
a person who is not very intelligent or interested in culture	a person who is not very intelligent or interested in culture