Source : Webster's Revised Unabridged Dictionary (1913)

Knowingness \Know"ing*ness\, n.
   The state or quality of being knowing or intelligent;
   shrewdness; skillfulness.

Source : WordNet®

knowingness
     n 1: having knowledge of; "he had no awareness of his mistakes";
          "his sudden consciousness of the problem he faced";
          "their intelligence and general knowingness was
          impressive" [syn: {awareness}, {consciousness}, {cognizance},
           {cognisance}]
     2: shrewdness demonstrated by knowledge