What does the word confusion mean?

Usage examples for confusion

  1. There was no reply, but he did not stir; for a curious feeling of confusion attacked him once more, and he put his hand to his head to try and master his thoughts. – The Man with a Shadow by George Manville Fenn
  2. Some little confusion of ideas. – A Duet by A. Conan Doyle
  3. He is fast on the road of confusion. – Diary from March 4, 1861, to November 12, 1862 by Adam Gurowski