lunatic

柯林斯詞典

1. N-COUNT If you describe someone as a lunatic, you think they behave in a dangerous, stupid, or annoying way. 瘋子[非正式]
Her son thinks she's an absolute raving lunatic. 她的兒子認為她是個十足的滿口胡言的瘋子。
2. ADJ If you describe someone's behaviour or ideas as lunatic, you think they are very foolish and possibly dangerous. 極端愚蠢的; 瘋狂的[表不滿]
...the operation of the market taken to lunatic extremes. …瘋狂到極點的市場運作。
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. …貝德蘭瘋人院的精神病人。