nonesuch vs nonpareil

nonesuch and nonpareil both are nouns.

Word	Noun	Adjective	Verb	Adverb
nonesuch	Yes	No	No	No
nonpareil	Yes	Yes	No	No

As nouns, nonesuch and nonpareil are synonyms defined as:

nonesuch and nonpareil: model of excellence or perfection of a kind; one having no equal

Other synonyms of nonesuch include apotheosis, ideal, nonsuch, paragon, saint.

nonesuch (noun)	nonpareil (noun)
model of excellence or perfection of a kind; one having no equal	colored beads of sugar used as a topping on e.g. candies and cookies
	a flat disk of chocolate covered with beads of colored sugar
	model of excellence or perfection of a kind; one having no equal

nonesuch (adjective)	nonpareil (adjective)
	eminent beyond or above comparison