Source : Webster's Revised Unabridged Dictionary (1913)

Modernness \Mod"ern*ness\, n.
   The quality or state of being modern; recentness; novelty.
   --M. Arnold.

Source : WordNet®

modernness
     n : the quality of being current or of the present; "a shopping
         mall would instill a spirit of modernity into this
         village" [syn: {modernity}, {modernism}, {contemporaneity},
          {contemporaneousness}]