Level 5 · word 9,949 of 20,000

lunatic

/ˈluːnəˌtɪk/ American
  • n. 疯子, 蠢人
  • adj. 疯狂的, 极其愚蠢的
Definition
  • n. a person who is mentally ill or behaves in a very foolish way
  • adj. extremely foolish or completely mad
Example
The old abandoned house was rumored to hide a dangerous lunatic.
传言那栋废弃的老房子里藏着一个危险的疯子。