pinched vs nasal

pinched is not a noun while nasal is a noun.

Word	Noun	Adjective	Verb	Adverb
pinched	No	Yes	No	No
nasal	Yes	Yes	No	No

As adjectives, pinched and nasal are synonyms defined as:

Other synonyms of pinched include adenoidal.

pinched (noun)	nasal (noun)
	an elongated rectangular bone that forms the bridge of the nose
	a consonant produced through the nose with the mouth closed

pinched (adjective)	nasal (adjective)
as if squeezed uncomfortably tight	of or in or relating to the nose
sounding as if the nose were pinched	sounding as if the nose were pinched
not having enough money to pay for necessities
very thin especially from disease or hunger or cold