able to adapt
adaptable
adjustable
alterable
alterative
ambitendent
ambivalent
at loose ends
brittle
capricious
changeable
changeful
changing
checkered
choppy
corruptible
deciduous
deviating
deviative
deviatory
different
disorderly
divaricate
divergent
diversified
diversiform
double-minded
dubious
dying
ephemeral
erose
erratic
evanescent
ever-changing
fading
fence-sitting
fence-straddling
fickle
fleeting
flexible
flitting
fluctuating
fluid
fly-by-night
flying
fragile
frail
amenable
destructible
dimensional
divisible
fallible
finite
four-dimensional
incoherent
inconstant
perishable
sea-like
transitory
unremarkable
unstable
disputable
immutable
indisputable
inscrutable
irrefutable
suitable
unsuitable