Mutability

[Sarah]

The quality of being mutable, or subject to change oralteration, either in form, state, or essential character;susceptibility of change; changeableness; inconstancy; variation.Plato confessed that the heavens and the frame of the world arecorporeal, and therefore subject to mutability. Stillingfleet.

[Sarah]

the ability to change or the fact of being likely to change:

[Cami]

Liability or tendency to change.