the GNU version of the Collaborative International Dictionary of English
n. The quality of being mutable, or subject to change or alteration, either in form, state, or essential character; susceptibility of change; changeableness; inconstancy; variation.
The Century Dictionary and Cyclopedia
n. The state or quality of being mutable.
n. Changeableness, as of mind, disposition, or will; inconstancy; instability: as, the mutability of opinion or purpose.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
n. the quality of being capable of mutation
Word Usage
"I wish I could freeze frame them, but their mutability is their poignant charm."