| 例句 |
doubtfuladjective not feeling sure about the truth, wisdom, or trustworthiness of someone or somethinghe was doubtful about the decision to complete the project despite its mounting problems distrustful, dubious, hinky(slang), mistrustful, skeptical, suspicious, trustless, uncertain, unconvinced, undecided, unsettled, unsure ambivalent, conflicted, equivocaldiffident, insecurehalting, hesitant, indecisive, irresolute, vacillating, wavering on the fence certain, convinced, positive, sure assured, confident, sanguine, self-assureddecisive, determined, resolute giving good reason for being doubted, questioned, or challengedthe election results were highly doubtful, so an investigation was begun debatable, disputable, dodgy(chiefly British), doubtable, dubious, dubitable, equivocal, fishy, problematic(also problematical), queer, questionable, shady, shaky, suspect, suspicious alleged, so-called, supposedmootambiguous, open, unclearuncertain, undecided, undeterminedfar-fetched, flimsy, improbable, unlikely, weak certain, hands-down, incontestable, indisputable, indubitable, questionless, sure, undeniable, undoubted, unproblematic, unquestionable decisive, definitiveclear, obvious, open-and-shut, positive not likely to be true or to occurour winning the championship increasingly looks like a doubtful outcome dubious, far-fetched, flimsy, improbable, questionable, unapt, unlikely implausible, impossible, inconceivable, incredible, unbelievable, unimaginable, unthinkableabsurd, bizarre, crazy, fantastic(also fantastical), foolish, insane, nonsensical, odd, outlandish, preposterous, ridiculous, unreal, wildoutside, remote, slight likely, probable believable, conceivable, credible, earthly, imaginable, plausiblepossible, potentialliable open to question or disputea doubtful claim to the property arguable, controvertible, debatable, disputable, doubtable, issuable, moot, negotiable, questionable contradictable, refutablecontroversial, debated, disputeddubious, iffy, inconclusive, indecisive, problematic(also problematical), shaky, uncertainacademic(also academical), hypothetical, speculative, theoretical(also theoretic)ambiguous, equivocal accomplished, certain, hands-down, inarguable, incontestable, incontrovertible, indisputable, indubitable, irrefragable, positive, questionless, settled, sure, unanswerable, unarguable, unchallengeable, undebatable, undeniable, unquestionable irrefutabledefiniteunambiguous, unequivocalabsolute, clear, conclusive, decisiveuncontested, undisputed doubtful, dubious, problematic, questionable mean not affording assurance of the worth, soundness, or certainty of something.doubtful implies little more than a lack of conviction or certainty.doubtful about whether I said the right thing dubious stresses suspicion, mistrust, or hesitation.dubious about the practicality of the scheme problematic applies especially to things whose existence, meaning, fulfillment, or realization is highly uncertain.whether the project will ever be finished is problematic questionable may imply no more than the existence of doubt but usually suggests that the suspicions are well-grounded.a man of questionable honesty in the 14th century |