transitory (adj.)
- adaptable
- adjustable
- alterable
- alterative
- brief
- brittle
- capricious
- changeable
- checkered
- corruptible
- deciduous
- discursive
- drifting
- dying
- ephemeral
- errant
- evanescent
- ever-changing
- fading
- fickle
- fleeting
- flexible
- floating
- fluid
- fly-by-night
- flying
- footloose
- fragile
- frail
- fugacious
- fugitive
- impermanent
- impetuous
- impulsive
- inconstant
- insubstantial
- kaleidoscopic
- malleable
- many-sided
- meandering
- metamorphic
- migrational
- migratory
- mobile
- modifiable
- momentary
- mortal
- movable
- mutable
- nomadic
- nonuniform
- passing
- perishable
- permutable
- plastic
- protean
- rambling
- ranging
- resilient
- roving
- rubbery
- shifting
- short-lived
- short-term
- straggling
- straying
- supple
- temporal
- temporary
- transient
- transitive
- unstable
- vagabond
- vagrant
- variable
- volatile
- wandering
Action is transitory,—a step, a blow;
The motion of a muscle, this way or that.