the GNU version of the Collaborative International Dictionary of English
n. The quality or state of being variable; variability.
The Century Dictionary and Cyclopedia
n. The state or character of being variable.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
n. the quality of being subject to variation
Word Usage
"It is impossible for any one to entertain the idea of variableness of light in relation to light, of truth in relation to truth, nor of the essence of the Only begotten in relation to that of the Father."