nitwit

Pronunciation:  US [ˈnɪtˌwɪt] UK ['nɪt.wɪt]
  • n.Idiot; fool
  • WebFools, stupid person, idiot
  • Beryl, don't be such a nitwit.
    Source: J. Drummond
  • Apparently, I have a nitwit half-brother.
    Source: attrib.