Synonyms and related words :
adrift, afloat, agnostic, aleatoric, aleatory, alternating, ambiguous, ambitendent, ambivalent, amorphic, amorphous, anarchic, at loose ends, baggy, bland, blobby, blurred, blurry, borderline, broad, capricious, chance, chancy, changeable, changeful, chaotic, characterless, confused, desultory, deviable, dicey, disordered, disorderly, dizzy, double-minded, doubtful, doubting, dubious, eccentric, equivocal, erratic, faltering, fast and loose, featureless, fence-sitting, fence-straddling, fickle, fitful, flickering, flighty, flitting, 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, indemonstrable, indeterminable, indeterminate, indistinct, inexact, infirm, infirm of purpose, infirm of will, inform, insipid, irregular, irresolute, irresolved, irresponsible, kaleidoscopic, lax, loose, lumpen, mazy, mercurial, milk-and-water, milky, misty, moody, moot, mugwumpian, mugwumpish, mushy, mutable, namby-pamby, neutral, nondescript, nonspecific, not following, not proved, obscure, of two minds, open, orderless, polysemous, problematic, rambling, random, restless, roving, scatterbrained, shadowed forth, shadowy, shaky, shapeless, shifting, shifty, shilly-shallying, shuffling, skeptical, spasmodic, spineless, stochastic, sweeping, tasteless, tentative, tergiversating, touch-and-go, unaccountable, unascertained, unattested, unauthenticated, uncertain, uncertified, unclear, unconfirmable, unconfirmed, uncontrolled, unconvinced, uncorroborated, undecided, undefined, undemonstrated, undependable, undestined, undetermined, undisciplined, undivinable, unestablished, unfixed, unforeseeable, unfounded, unordered, unorganized, unpersuaded, unplain, unpredictable, unprovable, unproved, unproven, unreliable, unresolved, unrestrained, unsettled, unshown, unspecified, unstable, unstable as water, unstaid, unsteadfast, unsteady, unsubstantiated, unsupported, unsupported by evidence, unsure, unsustained, untested, untried, unvalidated, unverifiable, unverified, vacillating, vagrant, vague, vapid, variable, veiled, vicissitudinary, vicissitudinous, volatile, wandering, wanton, watery, wavering, wavery, wavy, wayward, whimsical, wishy-washy, without basis, without grounds