Uncertain

a.	1.	Not certain; not having certain knowledge; not assured in mind; distrustful. Man, without the protection of a superior Being, . . . is uncertain of everything that he hopes for. - Tillotson.
	2.	Irresolute; inconsonant; variable; untrustworthy; as, an uncertain person; an uncertain breeze. O woman! in our hours of ease, Uncertain, coy, and hard to please! - Sir W. Scott.
	3.	Questionable; equivocal; indefinite; problematical. From certain dangers to uncertain praise. - Dryden.
	4.	Not sure; liable to fall or err; fallible. Soon bent his bow, uncertain in his aim. - Dryden. Whistling slings dismissed the uncertain stone. - Gay.
v. t.	1.	To make uncertain.

Adj.	1.	uncertain - lacking or indicating lack of confidence or assurance; "uncertain of his convictions"; "unsure of himself and his future"; "moving with uncertain (or unsure) steps"; "an uncertain smile"; "touched the ornaments with uncertain fingers" Synonyms: incertain, unsure Antonyms: sure, certain - having or feeling no doubt or uncertainty; confident and assured; "felt certain of success"; "was sure (or certain) she had seen it"; "was very sure in his beliefs"; "sure of her friends"
	2.	uncertain - not established beyond doubt; still undecided or unknown; "an uncertain future"; "a manuscript of uncertain origin"; "plans are still uncertain"; "changes of great if uncertain consquences"; "without further evidence his story must remain uncertain" Antonyms: certain - established beyond doubt or question; definitely known; "what is certain is that every effect must have a cause"; "it is certain that they were on the bus"; "his fate is certain"; "the date for the invasion is certain"
	3.	uncertain - not established or confirmed; "his doom is as yet unsealed" Synonyms: unsealed
	4.	uncertain - not firm or secure; "balancing three boxes in an uncertain pile"
	5.	uncertain - not certain to occur; not inevitable; "everything is uncertain about the army"; "the issue is uncertain" Antonyms: sure, certain - certain to occur; destined or inevitable; "he was certain to fail"; "his fate is certain"; "In this life nothing is certain but death and taxes"- Benjamin Franklin; "he faced certain death"; "sudden but sure regret"; "he is sure to win"
	6.	uncertain - subject to change; "a changeable climate"; "the weather is uncertain"; "unsettled weather with rain and hail and sunshine coming one right after the other" Synonyms: changeable, unsettled
	7.	uncertain - not safe from danger or mishap; "faced an uncertain future"; "an unsure existence" Synonyms: unsure
	8.	uncertain - not consistent or dependable; "an uncertain recollection of events"; "a gun with a rather uncertain trigger"
	9.	uncertain - ambiguous (especially in the negative); "she spoke in no uncertain terms"

Pyrrhonic, adrift, afloat, agnostic, alternating, ambitendent, ambivalent, amorphous, amphibological, amphibolous, at a loss, at loose ends, blear, bleared, bleary, blurred, blurry, broken, capricious, careening, catchy, chancy, changeable, changeful, choppy, confused, dark, desultory, deviable, deviative, dicey, disconnected, discontinuous, distrustful, dizzy, double-minded, doubting, eccentric, enigmatic, equivocal, equivocatory, erratic, faint, fast and loose, feeble, fence-sitting, fence-straddling, fickle, filmy, fitful, flickering, flighty, flitting, fluctuating, foggy, freakish, from Missouri, fuzzy, giddy, guttering, half-seen, half-visible, halting, hazardous, herky-jerky, hesitant, hesitating, heteroclite, iffy, ill-defined, immethodical, impetuous, impulsive, in doubt, incalculable, inconsistent, inconspicuous, inconstant, indecisive, indemonstrable, indistinguishable, infirm, infirm of purpose, insecure, intermittent, intermitting, ironic, irregular, irresolute, irresolved, irresponsible, jerky, leery, low-profile, lurching, mazy, mercurial, merely glimpsed, mistrustful, mistrusting, misty, moody, mugwumpian, mugwumpish, multivocal, mutable, mysterious, nonuniform, of two minds, out of focus, pale, patchy, polysemantic, polysemous, protean, questioning, rambling, restless, risky, rocky, rough, roving, scatterbrained, scrappy, scrupulous, semivisible, shadowy, shaky, shapeless, shifting, shifty, shuffling, shy, skeptical, snatchy, spasmatic, spasmic, spasmodic, spastic, speculative, spineless, sporadic, spotty, staggering, suspecting, suspicious, tottery, touch-and-go, treacherous, unaccountable, unconfirmable, uncontrolled, unconvinced, undecided, undefined, undependable, undisciplined, undivinable, unequal, uneven, unfixed, unforeseeable, unhealthy, unmethodical, unmetrical, unpersuaded, unplain, unpredictable, unprovable, unrecognizable, unregular, unreliable, unresolved, unrestrained, unrhythmical, unsafe, unsound, unstable, unstable as water, unstaid, unsteadfast, unsteady, unsystematic, untrusting, untrustworthy, unverifiable, vacillating, vagrant, vague, variable, veering, vicissitudinary, vicissitudinous, volatile, wandering, wanton, wary, wavering, wavery, wavy, wayward, weak, whimsical, wishy-washy, wobbling, wobbly