antidisestablishmentarianismistically
in a antidistestblishmentarian manner; Being opposed to the belief that there should no longer be an official church a the country. The word is sometimes quoted as the longest word in the English language. There is a town in Wales with a larger number of letters, but it is a place name, not a word.
Let's get one thing straight: while antidisestablishmentarianismistically is a real word, that has been really used with real meaning, it is mainly known for being an extremely long word.
antidisestablishmentarianismist
One who is against being against the separation of church and state.
One who favors a state religion would be considered and antidisestablishmentarianismist.