1. a whimsically eccentric person
  2. a pitch with reverse spin that curves toward the side of the plate from which it was thrown


  1. foolish; totally unsound; “a crazy scheme”; “half-baked ideas”; “a screwball proposal without a prayer of working”
  1. Informal North American a crazy or eccentric person she was dating a real screwball

  2. Baseball North American a pitched ball that moves in a direction opposite to that of a curveball.


  1. Informal North American crazy; absurd what possessed you to ask a screwball question like that?

Film relating to or denoting a style of fast-moving comedy film involving eccentric characters or ridiculous situations a screwball comedy in which two different couples find themselves sharing a house