flitting (?.)
- adrift
- afloat
- airborne
- alternating
- amorphous
- brittle
- capricious
- changeable
- changeful
- circumforaneous
- corruptible
- deciduous
- desultory
- deviable
- discursive
- divagatory
- dizzy
- drifting
- dying
- eccentric
- ephemeral
- errant
- erratic
- evanescent
- fading
- fast and loose
- fickle
- fitful
- fleeting
- flickering
- flighty
- floating
- fluctuating
- fluttering
- fly-by-night
- flying
- footloose
- footloose and fancy-free
- fragile
- frail
- freakish
- fugacious
- fugitive
- gadding
- giddy
- gliding
- gypsy-like
- gypsyish
- hovering
- impermanent
- impetuous
- impulsive
- inconsistent
- inconstant
- indecisive
- infirm
- insubstantial
- irregular
- irresolute
- irresponsible
- jet-propelled
- landloping
- mazy
- meandering
- mercurial
- migrational
- migratory
- momentary
- moody
- mortal
- mutable
- nomad
- nomadic
- nondurable
- nonpermanent
- passing
- perishable
- rambling
- ranging
- restless
- roaming
- rocket-propelled
- roving
- scatterbrained
- shapeless
- shifting
- shifty
- short-lived
- shuffling
- spasmodic
- spineless
- straggling
- straying
- strolling
- temporal
- temporary
- traipsing
- transient
- transitive
- transitory
- transmigratory
- unaccountable
- uncertain
- uncontrolled
- undependable
- undisciplined
- undurable
- unenduring
- unfixed
- unpredictable
- unreliable
- unrestrained
- unsettled
- unstable
- unstable as water
- unstaid
- unsteadfast
- unsteady
- vacillating
- vagabond
- vagrant
- variable
- vicissitudinary
- vicissitudinous
- volant
- volatile
- volitant
- wandering
- wanton
- wavering
- wavery
- wavy
- wayward
- whimsical
- winging
- wishy-washy
