insanity

柯林斯词典

1. N-UNCOUNT Insanity is the state of being insane. 精神错乱
...a psychiatrist who specialized in diagnosing insanity. …一位专门诊断精神错乱的精神病学家。
2. N-UNCOUNT If you describe a decision or an action as insanity, you think it is very foolish. 荒唐的决定; 极端愚蠢的行为[表不满]
...the final financial insanity of the 1980s. …20世纪80年代财政上最后的荒唐举措。