Source : Webster's Revised Unabridged Dictionary (1913)

Ineptitude \In*ept"i*tude\, n. [L. ineptitudo.]
   1. The quality of being inept; unfitness; inaptitude;
      unsuitableness.

            That ineptitude for society, which is frequently the
            fault of us scholars.                 --Tatler.

   2. Absurdity; nonsense; foolishness.

Source : WordNet®

ineptitude
     n : unskillfulness resulting from a lack of training [syn: {awkwardness},
          {clumsiness}, {ineptness}, {maladroitness}, {slowness}]