adj. Changing frequently; very susceptible to change; variable; fickle.
the GNU version of the Collaborative International Dictionary of English
adj. Full of change; mutable; inconstant; fickle; uncertain.
The Century Dictionary and Cyclopedia
Full of change; inconstant; mutable; fickle; uncertain; subject to alteration or variation.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
adj. such that alteration is possible; having a marked tendency to change
Word Usage
"Fortune is proverbially called changeful, yet her caprice often takes the form of repeating again and again a similar stroke of luck in the same quarter."