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Noun: dimwit  'dim,wit
  1. A stupid incompetent person
    - nitwit, half-wit, doofus [N. Amer], noodle, yo-yo [N. Amer], dufus [N. Amer], simp [N. Amer]

Derived forms: dimwits

Type of: simple, simpleton

Encyclopedia: Dimwit