uncertain

I

(Roget's IV) modif.

1. [Doubtful in mind]

Syn. dubious, undecided, in a quandary; see doubtful 2 .

2. [Not determined]

Syn. undecided, undetermined, unsettled, doubtful, changeable, unpredictable, improbable, unlikely, unfixed, unsure, indeterminate, haphazard, random, chance, casual, provisional, contingent, alterable, fluctuant, subject to change, possible, vague, conjectural, questionable, problematic, suppositional, suppositious, hypothetical, theoretical, open to question, equivocal, perplexing, debatable, dubious indefinite, unascertained, ambiguous, unresolved, debated, conjecturable, unknown, unannounced, imprecise, up in the air, in doubt, in abeyance, still in debate, on the knees of the Gods*.

II

(Roget's 3 Superthesaurus) a.

unsure, indefinite, questionable, hazy, indeterminate, unfixed, undecided, iffy, *up in the air, unpredictable, doubtful, unreliable, changeable, unsettled, unconfirmed, conjectural, vague.

ANT.: certain, sure, doubtless, definite

III

(Roget's Thesaurus II) adjective 1. Not affording certainty: ambiguous, borderline, chancy, clouded, doubtful, dubious, dubitable, equivocal, inconclusive, indecisive, indeterminate, problematic, problematical, questionable, unclear, unsure. Informal: iffy. Idioms: at issue, in doubt, in question. See CERTAIN, CLEAR. 2. In doubt or dispute: arguable, contested, debatable, disputable, doubtful, exceptionable, moot, mootable, problematic, problematical, questionable. See CERTAIN. 3. Liable to more than one interpretation: ambiguous, cloudy, equivocal, inexplicit, nebulous, obscure, unclear, vague. See CERTAIN, CLEAR. 4. Of dubious character: doubtful, equivocal, questionable, shady, suspect, suspicious. Informal: fishy. See HONEST. 5. Marked by lack of firm decision or commitment; of questionable outcome: indefinite, open, undecided, undetermined, unresolved, unsettled, unsure, vague. Idiom: up in the air. See CERTAIN. 6. Experiencing doubt: doubtful, dubious, skeptical, undecided, unsure. Idiom: in doubt. See CERTAIN. 7. Capable of or liable to change: alterable, changeable, fluid, inconstant, mutable, unsettled, unstable, unsteady, variable, variant. Archaic: various. See CHANGE. 8. Following no predictable pattern: capricious, changeable, erratic, fantastic, fantastical, fickle, freakish, inconsistent, inconstant, mercurial, temperamental, ticklish, unpredictable, unstable, unsteady, variable, volatile, whimsical. See CHANGE, CONTINUE.