ambiguous (adj.)
- agnostic
- amalgamated
- ambivalent
- amphibious
- blended
- capricious
- chancy
- changeable
- combined
- complex
- composite
- compound
- compounded
- confusable
- conglomerate
- cryptic
- dappled
- dicey
- double-faced
- doubtful
- doubting
- dubious
- eclectic
- enigmatic
- enigmatical
- equivocal
- erratic
- fickle
- fifty-fifty
- fishy
- foggy
- half-and-half
- hesitant
- hesitating
- heterogeneous
- impenetrable
- inarticulate
- incalculable
- incognizable
- incoherent
- incomprehensible
- inconclusive
- indecisive
- indefinite
- indeterminate
- indiscriminate
- indistinct
- inscrutable
- intricate
- ironic
- irresolute
- jumbled
- many-sided
- mingled
- miscellaneous
- misleading
- misty
- mixed
- motley
- multifaceted
- multinational
- multiracial
- mysterious
- numinous
- obscure
- opaque
- oracular
- paradoxical
- patchy
- pluralistic
- polysemantic
- polysemous
- problematic
- promiscuous
- puzzling
- questionable
- rambling
- scrambled
- self-contradictory
- skeptical
- suspect
- syncretic
- tenebrous
- touch-and-go
- unaccountable
- uncertain
- unclear
- unconnected
- unconvinced
- undefined
- undependable
- unfathomable
- unforeseeable
- unintelligible
- unknowable
- unpersuaded
- unpredictable
- unprovable
- unreliable
- unsettled
- unsure
- unverifiable
- vague
- variable
- varied
- wavering
- whimsical