THESAURUS
unpredictable
accidental, adrift, adventitious, afloat, agnostic, aleatory, alternating, ambiguous, amorphous, capricious, casual, causeless, chance, chancy, changeable, changeful, contingent, coquettish, destinal, desultory, deviable, dicey, dizzy, doubtful, doubting, dubious, eccentric, equivocal, erratic, extraordinary, faddish, fast and loose, fatal, fatidic, fickle, fitful, flickering, flighty, flirtatious, flitting, fluctuant, fluctuating, fluky, fortuitous, freakish, giddy, hesitant, hesitating, iffy, impetuous, improbable, impulsive, incalculable, incidental, inconsistent, inconstant, indecisive, indemonstrable, indeterminate, infirm, insecure, irregular, irresolute, irresponsible, light, mazy, mercurial, moody, more than expected, out-of-the-way, past expectation, polysemous, quicksilver, rambling, restless, risky, rocky, roving, scatterbrained, shaky, shapeless, shifting, shifty, shuffling, skeptical, skittish, spasmodic, spineless, sudden, tottery, touch-and-go, toying, treacherous, unaccountable, unannounced, unanticipated, uncaused, uncertain, unconfirmable, uncontrolled, unconvinced, undependable, undetermined, undisciplined, undivinable, undivined, unexpected, unfixed, unforeseeable, unforeseen, unguessed, unhealthy, unheralded, unhoped for, unlooked-for, unpersuaded, unpredicted, unprepared for, unprovable, unreliable, unrestrained, unsafe, unsettled, unsound, unstable, unstable as water, unstaid, unsteadfast, unsteady, unsure, untrustworthy, unverifiable, vacillating, vagrant, variable, versatile, vicissitudinary, vicissitudinous, volatile, wandering, wanton, wavering, wavery, wavy, wayward, whimsical, wishy-washy, without warning
ROGET THESAURUS
unpredictable
Chance
N
chance, lot, fate, luck, good luck, mascot, speculation, venture, stake, game of chance, mere shot, random shot, blind bargain, leap in the dark, pig in a poke, fluke, potluck, faro bank, flyer, limit, uncertainty, uncertainty principle, Heisenberg's uncertainty principle, drawing lots, sortilegy, sortition, sortes, sortes Virgilianae, rouge et noir, hazard, ante, chuck-a-luck, crack-loo, craps, faro, roulette, pitch and toss, chuck, farthing, cup tossing, heads or tails cross and pile, poker-dice, wager, bet, betting, gambling, the turf, gaming house, gambling house, betting house, bucket shop, gambling joint, totalizator, totalizer, hell, betting ring, dice, dice box, gambler, gamester, man of the turf, adventurer, dicer, fortuitous, unintentional, unintended, accidental, not meant, undesigned, purposed, unpremeditated, unforeseen, uncontemplated, never thought of, random, indiscriminate, promiscuous, undirected, aimless, driftless, designless, purposeless, causeless, without purpose, possible, unforeseeable,
unpredictable, chancy, risky, speculative, dicey, randomly, by chance, fortuitously, unpredictably, unforeseeably, casually, unintentionally, unwittingly, en passant, by the way, incidentally, as it may happen, at random, at a venture, at haphazard, acierta errando, dextro tempore, fearful concatenation of circumstances, fortuitous combination of circumstances, le jeu est le fils d'avarice et le pere du desespo, the happy combination of fortuitous circumstances, the fortuitous or casual concourse of atoms, God does not play dice with the universe, chance, indetermination, accident, fortune, hazard, hap, haphazard, chance medley, random, luck, raccroc, casualty, contingence, adventure, hit, fate, equal chance, lottery, tombola, toss up, turn of the table, turn of the cards, hazard of the die, chapter of accidents, fickle finger of fate, cast of the dice, throw of the dice, heads or tails, flip of a coin, wheel of Fortune, sortes, sortes Virgilianae, probability, possibility, odds, long odds, run of luck, accidentalness, main chance, odds on, favorable odds, contingency, dependence (uncertainty), situation (circumstance), statistics, theory of Probabilities, theory of Chances, bookmaking, assurance, speculation, gaming, casual, fortuitous, accidental, adventitious, causeless, incidental, contingent, uncaused, undetermined, indeterminate, random, statistical, possible, unintentional, by chance, accidentally, by accident, casually, perchance, for aught one knows, as good would have it, as bad would have it, as luck would have it, as ill-luck would have it, as chance would have it, as it may be, as it may chance, as it may turn up, as it may happen, as the case may be, grasps the skirts of happy chance, the accident of an accident, There but for the grace of God go I.
Uncertainty
N
uncertainty, incertitude, doubt, doubtfulness, dubiety, dubitation, dubitancy, dubitousness, hesitation, suspense, perplexity, embarrassment, dilemma, bewilderment, timidity, vacillation, diaporesis, indetermination, vagueness, haze, fog, obscurity, ambiguity, contingency, dependence, dependency, double contingency, possibility upon a possibility, open question, onus probandi, blind bargain, pig in a poke, leap in the dark, something or other, needle in a haystack, needle in a bottle of hay, roving commission, precariousness, fallibility, uncertain, casual, random, changeable, doubtful, dubious, indecisive, unsettled, undecided, undetermined, in suspense, open to discussion, controvertible, in question, vague, indeterminate, indefinite, ambiguous, equivocal, undefined, undefinable, confused, mystic, oracular, dazed, perplexing, enigmatic, paradoxical, apocryphal, problematical, hypothetical, experimental,
unpredictable, unforeseeable (unknowable), fallible, questionable, precarious, slippery, ticklish, debatable, disputable, unreliable, untrustworthy, contingent, contingent on, dependent on, subject to, dependent on circumstances, occasional, provisional, unauthentic, unauthenticated, unauthoritative, unascertained, unconfirmed, undemonstrated, untold, uncounted, in a state of uncertainty, in a cloud, in a maze, bushed, off the track, ignorant, afraid to say, out of one's reckoning, astray, adrift, at sea, at fault, at a loss, at one's wit's end, at a nonplus, puzzled, lost, abroad, d_esorient_e, distracted, distraught, pendente lite, sub spe rati, Heaven knows, who can tell? who shall decide when doctors disagr.
Inexpectation
N
inexpectation, non-expectation, false expectation, miscalculation, surprise, sudden burst, thunderclap, blow, shock, start, bolt out of the blue, wonder, eye opener, unpleasant surprise, pleasant surprise, nonexpectant, surprised, unwarned, unaware, off one's guard, inattentive, unexpected, unanticipated, unpredicted, unlooked for, unforeseen, unhoped for, dropped from the clouds, beyond expectation, contrary to expectation, against expectation, against all expectation, out of one's reckoning, unheard of, startling, surprising, sudden,
unpredictable, unforeseeable (unknowable), abruptly, unexpectedly, surprisingly, plump, pop, a l'improviste, unawares, without notice, without warning, without a 'by your leave', like a thief in the night, like a thunderbolt, in an unguarded moment, suddenly, Int, heydey!, little did one think, little did one expect, nobody would ever suppose, nobody would ever think, nobody would ever expect, who would have thought? it beats the Dutch.
Unintelligibility
N
unintelligibility, incomprehensibility, imperspicuity, inconceivableness, vagueness, obscurity, ambiguity, doubtful meaning, uncertainty, perplexity, spinosity, obscurum per obscurius, mystification, latency, transcendentalism, paradox, oxymoron, riddle, enigma, puzzle, diagnus vindice nodus, sealed book, steganography, freemasonry, pons asinorum, asses' bridge, high Dutch, Greek, Hebrew, jargon, unintelligible, unaccountable, undecipherable, undiscoverable, unknowable, unfathomable, incognizable, inexplicable, inscrutable, inapprehensible, incomprehensible, insolvable, insoluble, impenetrable, illegible, as Greek to one, unexplained, paradoxical, enigmatic, enigmatical, puzzling (secret), indecipherable, obscure, dark, muddy, clear as mud, seen through a mist, dim, nebulous, shrouded in mystery, opaque, dense, undiscernible, misty, hidden, latent, indefinite, garbled, perplexed, undetermined, vague, loose, ambiguous, mysterious, mystic, mystical, acroamatic, acroamatical, metempirical, transcendental, occult, recondite, abstruse, crabbed, inconceivable, inconceptible, searchless, above comprehension, beyond comprehension, past comprehension, beyond one's depth, unconceived, inexpressible, undefinable, incommunicable,
unpredictable, unforeseeable, it's Greek to me.
