madcap

 Longman Dictionary of Contemporary English 5++朗文当代英语 5++LDOCE 5++朗文 5++mad·cap /ˈmædkæp/ adjective [only before noun] old-fashioned  1  STUPID/NOT SENSIBLEa madcap idea seems crazy and unlikely to succeed 〔想法〕疯狂的，异想天开的 a madcap scheme 疯狂的计划2  a madcap person behaves in a crazy and often funny way 〔人〕疯癫可笑的 He plays a madcap game show host. 他演一个搞笑的游戏节目主持人。

Examples from the Corpus

madcap• a madcap adventure• Behind the madcap narrative is a deeper purpose.

mad·cap adjectiveChineseSyllable  

unlikely madcap crazy idea a seems Corpus and

madcap
mad‧cap /ˈmædkæp/ adjective [only before noun] old-fashioned
1. a madcap idea seems crazy and unlikely to succeed:
    a madcap scheme
2. a madcap person behaves in a crazy and often funny way:
    He plays a madcap game show host.

mad·capBrE /ˈmædkæp/ 🔊NAmE /ˈmædkæp/ 🔊 adjective [usually before noun] (informal) (of people, plans, etc. 人、计划等) crazy and not caring about danger; not sensible 鲁莽的；狂妄的；不明智的 SYN reckless ◆madcap schemes/escapades 冒险的计划；鲁莽的冒险行动