mutable (adj.)
- adaptable
- adjustable
- alterable
- alterative
- ambivalent
- brittle
- capricious
- changeable
- changeful
- changing
- checkered
- choppy
- corruptible
- deciduous
- deviating
- different
- disorderly
- divergent
- diversified
- dubious
- dying
- ephemeral
- erose
- erratic
- evanescent
- ever-changing
- fading
- fickle
- fleeting
- flexible
- fluctuating
- fluid
- fly-by-night
- flying
- fragile
- frail
- fugacious
- fugitive
- impermanent
- impetuous
- impulsive
- inconsistent
- inconstant
- indecisive
- insubstantial
- irregular
- irresolute
- jagged
- jerky
- kaleidoscopic
- lubricious
- malleable
- many-sided
- mercurial
- metamorphic
- mobile
- modifiable
- momentary
- mortal
- motley
- movable
- nonconformist
- nonstandard
- nonuniform
- passing
- perishable
- permutable
- plastic
- pluralistic
- protean
- ragged
- resilient
- rough
- rubbery
- shifty
- short-lived
- slippery
- spasmodic
- sporadic
- supple
- swinging
- temperamental
- temporal
- temporary
- ticklish
- transient
- transitive
- transitory
- uncertain
- undecided
- undetermined
- unequal
- uneven
- unorthodox
- unresolved
- unsettled
- unstable
- unsteady
- unsystematic
- vacillating
- variable
- variegated
- variform
- various
- varying
- volatile
- wavering
