Source : Webster's Revised Unabridged Dictionary (1913)

Triviality \Triv`i*al"i*ty\, n.; pl. {Trivialities}. [Cf. F.
   trivialit['e]]
   1. The quality or state of being trivial; trivialness.

   2. That which is trivial; a trifle.

            The philosophy of our times does not expend itself
            in furious discussions on mere scholastic
            trivialities.                         --Lyon
                                                  Playfair.

Source : WordNet®

triviality
     n 1: the quality of being unimportant and petty or frivolous
          [syn: {pettiness}, {slightness}]
     2: a detail that is considered insignificant [syn: {technicality},
         {trifle}]
     3: something of small importance [syn: {trivia}, {trifle}, {small
        beer}]