perfection vs couth

perfection and couth both are nouns.

Word	Noun	Adjective	Verb	Adverb
perfection	Yes	No	No	No
couth	Yes	Yes	No	No

As nouns, couth is a hyponym of perfection; that is, couth is a word with a more specific, narrower meaning than perfection:

Other hyponyms of perfection include dream, cultivation, culture, finish, polish, refinement, fare-thee-well, intactness, immaculacy.

perfection (noun)	couth (noun)
the act of making something perfect	(used facetiously) refinement
an ideal instance; a perfect embodiment of a concept
the state of being without a flaw or defect

perfection (adjective)	couth (adjective)
	(used facetiously) refined and well-mannered