abderitism
The theory that humanity's morality will never advance beyond its present state.
uncountable
This one example of Abderitism will suffice for my present purpose, though innumerable instances might be produced in other departments.
Where it comes from
From German Abderitismus, from Abderit (“foolish person”) + -ismus (“-ism”), from Ancient Greek Ἀβδηρῑ́της (Abdērī́tēs, “Abderite”) because of the Abderites’ famed foolishness and stupidity in classical Greece. It is equivalent to Abderite + -ism. The German term was coined by the philosopher Immanuel Kant (1724–1804) in Der Streit der Fakultäten (The Conflict of the Faculties, 1798).
Adapted from the Wiktionary entry abderitism (CC BY-SA 4.0).