lunatic

疯狂的；精神错乱的；愚蠢的英释中释adjIf you describe someone's behaviour or ideas as lunatic, you think they are very foolish and possibly dangerous

疯子；疯人英释中释nsomeone who behaves in a crazy or very stupid way – often used humorously

1 lunatic asylum,精神病院，疯人院

1 ...the operation of the market taken to lunatic extremes..…疯狂到极点的市场运作。