a person motivated by irrational enthusiasm (as for a cause); "A fanatic is one who can't change his mind and won't change the subject"--Winston Churchill
marked by excessive enthusiasm for and intense devotion to a cause or idea; "rabid isolationist"
someone who refuses to conform to established standards of conduct
a Protestant in England who is not a member of the Church of England
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"