According to Dictionary.com: 1. One who does not conform to, or
refuses to be bound by, accepted beliefs, customs, or practices. 2.
often Nonconformist A member of a Protestant church not observing
the doctrines, usage, or polity of a national or established
church, especially the Church of England.
http://dictionary.reference.com/search?q=nonconformist Urban
dicionary:
http://www.urbandictionary.com/define.php?term=nonconformist
Wikipedia: http://en.wikipedia.org/wiki/Nonconformist