be unsure about Synonym

doubtful, suspicious, questionable, uncertain, dubious, fishy, untrustworthy, shady, skeptical, wary, mistrustful, apprehensive, leery, unsure, hesitant, cautious, guarded, incredulous, disbelieving, unconvinced, problematic, unreliable, iffy, dodgy, unproven, unverified, unconfirmed, unsubstantiated, suspecting, distrustful [x]

doubtful, uncertain, questionable, suspicious, unsure, hesitant, skeptical, untrustworthy, unreliable, fishy, shady, ambiguous, equivocal, problematic, debatable, disputable, unclear, indefinite, iffy, unconvincing, inconclusive, wavering, vacillating, indecisive, unresolved, unsettled, precarious, suspect, dodgy, unproven, unsubstantiated, implausible, unpersuasive, dubious [x]

delaying, postponing, deferring, stalling, hesitating, dawdling, lingering, dithering, dragging, temporizing, loitering, shilly-shallying, wavering, vacillating, dilly-dallying, putting off, holding off, pausing, idling, tarrying, staving off, suspending, adjourning [x]

indeterminate, uncertain, ambiguous, unresolved, undecided, indefinite, unclear, unconvincing, vague, open-ended, inconclusive [x]

unforeseeable, erratic, uncertain, capricious, volatile, unstable, changeable, inconsistent, unreliable, whimsical, impulsive, mercurial, fickle, wayward, variable, random, haphazard, irregular, incalculable, undependable, fluctuating, temperamental, flighty, quirky, spontaneous, surprising, unexpected, unsteady, inconstant, fitful, mutable, shifting, wavering, unplanned, unanticipated, chance, arbitrary, sudden, ungovernable, uncontrollable, unrestrained, unregulated, unmethodical, unorganized, unstructured, disorderly, chaotic [x]

doubts, mistrust, skepticism, wariness, distrust, misgivings, qualms, apprehensions, uncertainties, reservations, conjectures surmises, speculations, hunches, intuitions, inklings, suspicions [x]

hesitant, uncertain, wavering, irresolute, vacillating, dithering, ambivalent, unsure, faltering, tentative, doubtful, fickle, fluctuating, shilly-shallying, in two minds, on the fence, torn, undetermined, unresolved, in a quandary, in a dilemma, in a predicament, in a bind, in a fix, in a jam, in a pickle, in a spot, in a tight spot, in a tight corner, in a tight place, in a tough spot, in a tough situation, in a tricky situation, in a tricky spot, in a tricky place, in a tricky predicament, in a tricky fix, in a tricky jam, in a tricky bind, in a tricky pickle, in a tricky quandary, in a tricky dilemma [x]

tentative, provisional, temporary, preliminary, interim, conditional, subject to change, uncertain, indefinite, inconclusive, unconfirmed, pending, speculative, hesitant, trial, experimental, probationary, test, exploratory, makeshift, stopgap, short-term, transient, impermanent, revocable, modifiable, adjustable, flexible, adaptable, alterable, amendable, revisable, mutable, changeable, fluctuating, wavering, vacillating, unsure, doubtful, iffy, unsettled, unresolved, open-ended, undetermined, unfinalized, inchoate, nascent, embryonic [x]

undecided, unresolved, uncertain, pending, unconfirmed, unsettled, open, ambiguous, indefinite, unclear, wavering, hesitant, unsure, in limbo, up in the air, in abeyance, in doubt, in question, on the fence, uncommitted, vacillating, equivocal, tentative, provisional, unestablished, unassured, unfinalized, unratified, unsealed, unverified, unproven, untested, untried, unvalidated, unsubstantiated, uncorroborated, moot, debatable, disputable, contestable, arguable, questionable, inconclusive, unascertained, uncharted [x]

uncertain, doubtful, hesitant, indecisive, unsure, wavering, ambivalent, skeptical, tentative, unclear, iffy, undetermined, unresolved, in doubt, on the fence, in two minds, vacillating, questioning, unconfident, dubious, in a quandary, in a dilemma, in limbo, up in the air, in suspense, in a state of flux, in a state of uncertainty, in a state of indecision, in a state of hesitation, in a state of doubt, in a state of ambivalence, in a state of skepticism, in a state of tentativeness, in a state of unclarity, in a state of iffiness, in a state of undeterminedness, in a state of unresolvedness, in a state of wavering, in a state of vacillation, in a state of questioningness, in a state of unconfidence, in a state of dubiousness, in a state of quandary, in a state of dilemma, in a state of limbo, in a state of suspense [x]

debatable, disputable, arguable, questionable, uncertain, doubtful, controversial, unsettled, unresolved, ambiguous, unclear, indefinite, moot, contestable, problematic, dubious, equivocal, undecided, open, inconclusive, unconfirmed, unproven, speculative, iffy, up in the air, in doubt, in question, not certain, not definite, not settled, not sure, open for discussion, open to debate, open to doubt, open to interpretation, open to objection, open to scrutiny, open-ended, pending, touch-and-go, up for grabs, up for discussion, up for debate [x]

inconclusive, indecisive, uncertain, unresolved, ambiguous, indefinite, unclear, open-ended, undetermined, unsettled, vague, equivocal, unconvincing, unconfirmed, unproven, questionable, debatable, doubtful, inconcludent, non-definitive [x]

unsure, doubtful, hesitant, indecisive, unclear, ambiguous, uncertain, insecure, wavering, tentative, iffy, unconfident, unpredictable, unsettled, indefinite, unresolved, undetermined, equivocal, inconclusive, unsteady, vacillating, skeptical, dubious, ambivalent [x]

indecisive, hesitant, uncertain, wavering, irresolute, vacillating, tentative, doubtful, unsure, faltering, ambivalent, dithering, fickle, shilly-shallying, undetermined, unresolved, unsteady, fluctuating, inconstant, changeable, wishy-washy, noncommittal, equivocal [x]

indecisive, wavering, hesitant, uncertain, irresolute, dithering, fluctuating, ambivalent, torn, unsure, faltering, shilly-shallying, vacillating, undetermined, in two minds, on the fence, in a quandary, in a dilemma, in a state of flux, unsteady, changeable, fickle, variable, unstable, oscillating, pendulous, shuffling, tentative, doubtful [x]