modifiable (adj.)

• adaptable
• adjustable
• alterable
• alterative
• changeable
• checkered
• convertible
• ever-changing
• flexible
• fluid
• impermanent
• kaleidoscopic
• malleable
• many-sided
• metamorphic
• mobile
• movable
• mutable
• nonuniform
• permutable
• plastic
• protean
• resilient
• resolvable
• rubbery
• supple
• transformable
• transient
• transitional
• transitory
• transmutable
• variable