Home › Words › N › nincompooperynincompooperynincompoopery means the beliefs and behaviours of a nincompoop; folly; idiocy.EtymologyFrom nincompoop + -ery.nounThe beliefs and behaviours of a nincompoop; folly; idiocy.Definitions & examples from Wiktionary (CC BY-SA 3.0).Words closest in meaningBy meaning, not spelling — each word's AI semantic fingerprint, nearest first.nincompoopism 95% match — The beliefs and behaviours of a nincompoop; folly; idiocy. vs nincompoopery →nincompoopish 81% match — Like a nincompoop; foolish; silly. vs nincompoopery →nincompoop 80% match — A foolish or silly person. vs nincompoopery →numbskullery 67% match — The behaviour of a numbskull; foolishness; stupidity. vs nincompoopery →ninnyism 67% match — predisposition to act like a ninny vs nincompoopery →ninny 63% match — A silly or foolish person. vs nincompoopery →ninnyhammer 62% match — A foolish person; a simpleton. vs nincompoopery →buffoonery 60% match — The behavior of a buffoon; foolishness, silliness. vs nincompoopery →