Heterodoxy includes "any opinions or doctrines at variance with an official or orthodox position". As an adjective, heterodox's used to describe a subject as "characterized by departure from accepted beliefs or standards" (status quo). The noun heterodoxy's synonymous with unorthodoxy, while the adjective heterodox's synonymous with dissident. Ecclesiastic usage Eastern Orthodoxy In the Eastern Orthodox Church, the term's used to refer to Christian churches not belonging to the Eastern Orthodox… (More on Heterodoxy)