empty-headed

Từ điển Oxford Advanced Learner 8th

ˌempty-ˈheaded [empty-headed] BrE NAmE adjective (disapproving)
unable to think or behave in an intelligent way

• Từ đồng nghĩa / Synonyms:
  airheaded, dizzy, featherbrained, giddy, light-headed, lightheaded, silly