What does the word imbecile mean?

Usage examples for imbecile

  1. The few factors which did not were mere imbecile idealism, or downright hypocrisy. – The Bent Twig by Dorothy Canfield
  2. But his secret passage cannot be imbecile too. – A Voyage with Captain Dynamite by Charles Edward Rich
  3. He flings back his head, draws a deep breath, and remains staring like an imbecile at the roof of the railway carriage for quite two minutes. – A Woman's Experience in the Great War by Louise Mack