In English, however, the use of the word antidisestablishmentarianism (unless you're discussing the history of the Church of England, which is, let's face it, vanishingly unlikely) is a sign that the speaker is both a show-off and a pompous bore.
If anyone's interested (though I can't imagine anyone much is), antidisestablishmentarianism means...well, the establishment bit is to do with the Church of England having a special legal basis in the constitution of England (establishmentarians hold the view that this is a good and necessary thing); disestablishmentarians think the C of E should have no such special political place; and antidisestablishmentarians think they are nuts.
See? It's all quite simple, though very pompous and silly - and surely - surely! - the word must originally been made up as a joke.
Sunday Rest: antidisestablishmentarianism. Establish comes from the Latin word stabilīre, to make firm.