adjustable
astatic
checkered
colorful
colourful
distortable
erratic
fickle
fluid
jittering
kaleidoscopic
kaleidoscopical
mercurial
mobile
open-ended
quick-change
quick-drying
quicksilver
reversible
unstable
variable
volatile
able to adapt
adaptable
adrift
afloat
agnostic
alterable
alterative
altered
alternating
ambiguous
ambitendent
ambivalent
amorphous
at loose ends
better
bland
brittle
capricious
chancy
changed
changeful
changing
choppy
commutable
commutative
converted
convertible
coquettish
corruptible
deciduous
degenerate
desultory
deviable
deviant
deviating
deviative
deviatory
dicey
different
disorderly
divaricate
divergent
diversified
diversiform
dizzy
double-minded
contradictory
ephemeral
ever-changing
fitful
fleeting
flighty
inconstant
indeterminate
irresolute
irritable
mutable
undecided
unpredictable
unreliable
unsettle
unsteady
wayward
exchangeable
interchangeable