Source : Webster's Revised Unabridged Dictionary (1913)

Futility \Fu"til`i*ty\, n. [L. futilitas: cf. F. futilit['e].]
   1. The quality of being talkative; talkativeness;
      loquaciousness; loquacity. [Obs.]

   2. The quality of producing no valuable effect, or of coming
      to nothing; uselessness.

            The futility of this mode of philosophizing.
                                                  --Whewell.

Source : WordNet®

futility
     n : uselessness as a consequence of having no practical result