Source : Webster's Revised Unabridged Dictionary (1913)

Likeliness \Like"li*ness\, n.
   1. Likelihood; probability.

   2. Suitableness; agreeableness. [Obs.]

Source : WordNet®

likeliness
     n : the probability of a specified outcome [syn: {likelihood}, {odds}]
         [ant: {unlikelihood}, {unlikelihood}]