lunacy
['lu:.nə.sɪ] noun uncountable
■stupid behaviour that will have bad results 愚蠢的行为，不明智的举动•It would be lunacy to try to climb the mountain in this weather.疯子才会在这样的天气去爬山。 •It was sheer lunacy spending all that money.把那些钱都花光简直是愚蠢至极。 old-fashioned
■mental illness 精神病，精神错乱 |