rube vs bumpkin

rube and bumpkin both are nouns.

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

As nouns, rube and bumpkin are synonyms defined as:

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

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

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