indecisive (adj.)
- adrift
- afloat
- agnostic
- aleatory
- alternating
- ambiguous
- ambivalent
- amorphic
- amorphous
- anarchic
- baggy
- bland
- blurred
- blurry
- borderline
- broad
- capricious
- chance
- chancy
- changeable
- changeful
- chaotic
- characterless
- confused
- desultory
- dicey
- disordered
- disorderly
- dizzy
- doubtful
- doubting
- dubious
- eccentric
- equivocal
- erratic
- faltering
- featureless
- fickle
- fitful
- flickering
- flighty
- fluctuating
- foggy
- formless
- freakish
- fuzzy
- general
- giddy
- groundless
- halfhearted
- halting
- hazy
- hesitant
- hesitating
- hit-or-miss
- ill-defined
- impetuous
- imprecise
- impulsive
- inaccurate
- incalculable
- inchoate
- incoherent
- inconclusive
- inconsistent
- inconstant
- indefinable
- indefinite
- indeterminable
- indeterminate
- indistinct
- inexact
- infirm
- insipid
- irregular
- irresolute
- irresponsible
- kaleidoscopic
- lax
- loose
- lumpen
- mazy
- mercurial
- milky
- misty
- moody
- moot
- mushy
- mutable
- namby-pamby
- neutral
- nondescript
- nonspecific
- obscure
- open
- polysemous
- problematic
- rambling
- random
- restless
- roving
- scatterbrained
- shadowy
- shaky
- shapeless
- shifting
- shifty
- skeptical
- spasmodic
- spineless
- stochastic
- sweeping
- tasteless
- tentative
- touch-and-go
- unaccountable
- uncertain
- uncertified
- unclear
- unconfirmed
- uncontrolled
- unconvinced
- uncorroborated
- undecided
- undefined
- undependable
- undetermined
- undisciplined
- unestablished
- unfixed
- unforeseeable
- unfounded
- unordered
- unorganized
- unpersuaded
- unpredictable
- unprovable
- unproved
- unproven
- unreliable
- unresolved
- unrestrained
- unsettled
- unspecified
- unstable
- unsteady
- unsubstantiated
- unsupported
- unsure
- untested
- untried
- unverifiable
- unverified
- vacillating
- vagrant
- vague
- vapid
- variable
- veiled
- volatile
- wandering
- wanton
- watery
- wavering
- wavy
- wayward
- whimsical
- wishy-washy