(adj) not conforming to some norm or socially approved pattern of behavior or thought, Syn. unconformist, Ant. conformist, Example:their rabidly nonconformist deportment has made them legendary; the old stubborn nonconformist spirit of the early settlers
The Collaborative International Dictionary of English (GCIDE) v.0.53 Collaborative International Dictionary (GCIDE)
n. One who does not conform to an established church; especially, one who does not conform to the established church of England; a dissenter. [ 1913 Webster ]