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

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