yahoo vs hayseed

yahoo and hayseed both are nouns.

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

As nouns, yahoo and hayseed are synonyms defined as:

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

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

yahoo (noun)	hayseed (noun)
a person who is not very intelligent or interested in culture	a person who is not very intelligent or interested in culture