uncouthness vs boorishness

uncouthness and boorishness both are nouns.

Word	Noun	Adjective	Verb	Adverb
uncouthness	Yes	No	No	No
boorishness	Yes	No	No	No

As nouns, uncouthness and boorishness are synonyms defined as:

uncouthness and boorishness: inelegance by virtue of being an uncouth boor

uncouthness (noun)	boorishness (noun)
inelegance by virtue of being an uncouth boor	inelegance by virtue of being an uncouth boor
	the manner of a rude or insensitive person