underbred vs yokelish

underbred and yokelish both are adjectives.

Word	Noun	Adjective	Verb	Adverb
underbred	No	Yes	No	No
yokelish	No	Yes	No	No

As adjectives, underbred and yokelish are synonyms defined as:

Other synonyms of underbred include bounderish, ill-bred, lowbred, rude.

underbred (adjective)	yokelish (adjective)
of inferior or mixed breed	(of persons) lacking in refinement or grace
(of persons) lacking in refinement or grace