antidisestablishmentarianism /ˌæntiˌdɪsɪˌstæblɪʃmənˈtɛəɹi.əˌnɪz(ə)m/ noun1 •A political philosophy opposed to the separation of a religious group (church) and a government (state), especially the belief held by those in 19th-century England opposed to separating the Anglican church from the civil government, or the separation of church and state.As we said yesterday, the case for antidisestablishmentarianism has never been more threadbare. — 2005 formsantidisestablishmentarianisms