faith vs unclean

faith is a noun but unclean is not a noun.

Word	Noun	Adjective	Verb	Adverb
faith	Yes	No	No	No
unclean	No	Yes	No	No

faith (noun)	unclean (noun)
loyalty or allegiance to a cause or a person
a strong belief in a supernatural power or powers that control human destiny
complete confidence in a person or plan etc
an institution to express belief in a divine power

faith (adjective)	unclean (adjective)
	having a physical or moral blemish so as to make impure according to dietary or ceremonial laws
	soiled or likely to soil with dirt or grime