nonconformist

nouns

someone who refuses to conform to established standards of conduct

nonconformist, recusant

is derived from

antonym

not conforming to some norm or socially approved pattern of behavior or thought

"their rabidly nonconformist deportment has made them legendary"; "the old stubborn nonconformist spirit of the early settlers"

antonym

not conforming to established customs or doctrines especially in religion