(a.) Not explicit; not clearly stated; indefinite; vague.

adulterated aleatoric aleatory ambiguous amorphous approximate approximative barbarous blemished blobby blurred blurry broad careless chance chancy chaotic cloudy confused damaged defective deficient disordered easy easygoing erroneous fallible faulty foggy found wanting fuzzy general hazy hit-or-miss ill-defined immature impaired imperfect impotent improper impure inaccurate inadequate inchoate incoherent incomplete incorrect indecisive indefinable indefinite indeterminable indeterminate indifferent indistinct inexact inexplicit infelicitous lacking lax lenient loose makeshift mediocre mixed negligent nonspecific not perfect obscure off orderless out of line out of plumb out of square out of true overindulgent overpermissive partial patchy permissive random relaxed remiss shadowed forth shadowy shapeless short sketchy slack slipshod sloppy slovenly soft solecistic stochastic sweeping unclear undefined undestined undetermined undeveloped uneven unfactual unfinished ungrammatic unperfected unplain unprecise unrestrained unrigorous unsound unspecified unthorough vague veiled wanting weak woolly wrong