Source : Webster's Revised Unabridged Dictionary (1913)

Mistake \Mis*take"\, n.
   1. An apprehending wrongly; a misconception; a
      misunderstanding; a fault in opinion or judgment; an
      unintentional error of conduct.

            Infallibility is an absolute security of the
            understanding from all possibility of mistake.
                                                  --Tillotson.

   2. (Law) Misconception, error, which when non-negligent may
      be ground for rescinding a contract, or for refusing to
      perform it.

   {No mistake}, surely; without fail; as, it will happen at the
      appointed time, and no mistake. [Low]

   Syn: Blunder; error; bull. See {Blunder}.