The Collaborative International Dictionary of English v.0.48:
Movableness \Mov"a*ble*ness\, n. The quality or state of being movable; mobility; susceptibility of motion. [1913 Webster]WordNet (r) 3.0 (2006):
movableness n 1: the quality of being movable; capable of being moved or rearranged [syn: movability, movableness] [ant: immovability, immovableness]