quality - an essential and distinguishing attribute of something or someone; "the quality of mercy is not strained"--Shakespeare

locomotion, motive power, motivity - the power or ability to move

motility - ability to move spontaneously and independently

movability, movableness - the quality of being movable; capable of being moved or rearranged

maneuverability, manoeuvrability - the quality of being maneuverable

manipulability - the quality of being controllable by skilled movements of the hands

restlessness - the quality of being ceaselessly moving or active; "the restlessness of the wind"