lunatic

1. N-COUNT If you describe someone as a lunatic, you think they behave in a dangerous, stupid, or annoying way. 疯子[非正式]

Her son thinks she's an absolute raving lunatic. 她的儿子认为她是个十足的满口胡言的疯子。

2. ADJ If you describe someone's behaviour or ideas as lunatic, you think they are very foolish and possibly dangerous. 极端愚蠢的; 疯狂的[表不满]

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

3. N-COUNT People who were mentally ill used to be called lunatics. 精神病患者[老式]

...the lunatics in the Bedlam asylum. …贝德兰疯人院的精神病人。