What does the word idiocy mean?

Usage examples for idiocy

  1. He resided for many years in New York, and made, while in America, valuable contributions to the literature of idiocy. – Chapters in the History of the Insane in the British Isles by Daniel Hack Tuke
  2. The trouble, when it came, was all my own making, and my dismissal was entirely due to an act of silly recklessness and my own idiocy. – Captain Macklin by Richard Harding Davis
  3. Vice and misery, suffering and poverty, idleness and dishonesty, feeble- mindedness and idiocy are all blended, but no set- off in virtue and industry is to be found. – London's Underworld by Thomas Holmes