nonconforming vs nonconformist

nonconforming is not a noun while nonconformist is a noun.

Word	Noun	Adjective	Verb	Adverb
nonconforming	No	Yes	No	No
nonconformist	Yes	Yes	No	No

As adjectives, nonconforming and nonconformist are synonyms defined as:

nonconforming and nonconformist: not conforming to established customs or doctrines especially in religion

nonconforming (noun)	nonconformist (noun)
	someone who refuses to conform to established standards of conduct

nonconforming (adjective)	nonconformist (adjective)
not conforming to established customs or doctrines especially in religion	not conforming to some norm or socially approved pattern of behavior or thought
	not conforming to established customs or doctrines especially in religion