hayseed vs bumpkin

hayseed and bumpkin both are nouns.

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

As nouns, hayseed and bumpkin are synonyms defined as:

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

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

hayseed (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