The campaign to disestablish the Church of England.(noun)
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Use "disestablishmentarianism" in a sentence
"Whence his non-conformity, and what does his disestablishmentarianism allow Casey Rae-Hunter to do?"
"So when you did leave a comment, it would have to be stuff like E=mc2 or really hard words to spell like anti-disestablishmentarianism."
"Some wanted them disestablished (disestablishmentarianism) and others opposed the disestablishing of the established religions (antidisestablishmemtarianism)."