adjustable
astatic
checkered
distortable
erratic
fickle
fluid
jittering
kaleidoscopic
kaleidoscopical
mercurial
mobile
open-ended
quick-change
quick-drying
quicksilver
reversible
unstable
volatile
inconstant
mutable
uncertain
changeable
deathless
ethereal
ever-changing
ever-varying
fadeless
far-away
fitful
fleeting
glassy
imperishable
iridescent
milky
opalescent
red-gold
refulgent
splenetic
tempestuous
unfading
unpredictable