Synonyms of uncertain

1 Syllable

weak, moot

2 Syllables

vague, vaguest, fluky, hazy, iffy, vaguer, queasy, dicey, ticklish, cincher, wiggly, dubious, stumped, chancier, fluctuant, clouded, fitful, dicier, breezer, varying, changing, halting, suspect, mooter, troublous, weakest, flukier, chancy, riskier, casual, show-me, doubtful, unclear, fishy, risky, leery, weaker, zillion

3 Syllables

erratic, stochastic, tottery, disturbing, unsettled, flickering, dithering, tottering, perilous, hazardous, inconstant, unsure, claudicant, fallible, nebulous, hesitant, upsetting, spurtive, unpunctual, precarious, ambiguous, unstable, touch-and-go, contingent, tenebrous, whimsical, spasmodic, indistinct, unsettling, reluctant, suspected, doubtable, self-conscious, ill-at-ease, possible, variable, jellyfish, perturbing, butterflies, untrusty, perplexed, wavering, changeful, unsafe, changeable, unfixed

4 Syllables

questionable, scaredy-cat, unprecise, unreliable, debateable, debatable, incredulous, intangible, problematic, disputable, dubitable, unconfirmed, refutable, impugnable, permutable, controversial, borderline, circumstantial, irregular, on-the-fence, unsupported, reversible, nonuniform, multivocal, polysemous, unresolved, improbable, unspecific, uncountable, conditional, inexplicit, ambivalent, insecure, contestable, unapparent, enigmatic, conceptive, unconvinced, conjectural, hesitating, vacillating, revocable, unequable, provisory, bewildered, undecided, unfateful, inconsistent

5 Syllables

unforeseeable, unpredictable, hypothetical, problematical, temperamental, codicillary, hundred-to-one, indefinite, apprehensive, speculative, incomputable, unreckonable, undependable, unsubstantiated, formularized, incalculable, commutative, irresolute, undetermined, inconclusive

6 Syllables

unintelligible, indeterminable, indeterminate, amphibological