Indeterminate

(a.) Not determinate; not certain or fixed; indefinite; not precise; as, an indeterminate number of years.

Thesaurus Entries

abstract, accidental, adventitious, aleatoric, aleatory, amorphic, amorphous, anarchic, baggy, bland, blind, blobby, blurred, blurry, broad, casual, causeless, chance, chancy, chaotic, characterless, clear as mud, cloudy, collective, confused, contingent, dark, destinal, dicey, dim, disordered, disorderly, fatal, fatidic, featureless, fluky, foggy, formless, fortuitous, fuzzy, general, generalized, generic, hazy, hit-or-miss, iffy, ill-defined, imprecise, inaccurate, inchoate, incidental, incoherent, indecisive, indefinable, indefinite, indeterminable, indistinct, inexact, inform, kaleidoscopic, lax, loose, lumpen, misty, muddy, murky, nebulous, neutral, nondescript, nonspecific, obscure, opaque, orderless, random, risky, shadowed forth, shadowy, shapeless, stochastic, sweeping, transcendent, uncaused, uncharacterized, unclear, undefined, undestined, undetermined, undifferentiated, unexpected, unforeseeable, unforeseen, unlooked-for, unordered, unorganized, unplain, unpredictable, unspecified, vague, veiled, wide