Source : Webster's Revised Unabridged Dictionary (1913)

Movableness \Mov"a*ble*ness\, n.
   The quality or state of being movable; mobility;
   susceptibility of motion.

Source : WordNet®

movableness
     n : the quality of being movable; capable of being moved or
         rearranged [syn: {movability}] [ant: {immovability}, {immovability}]