du·bi·ous /ˈdubiəs ||dju-/
 (a.)可疑的,不確定的


 Du·bi·ous a.
 1. Doubtful or not settled in opinion; being in doubt; wavering or fluctuating; undetermined. “Dubious policy.”
    A dubious, agitated state of mind.
 2. Occasioning doubt; not clear, or obvious; equivocal; questionable; doubtful; as, a dubious answer.
    Wiping the dingy shirt with a still more dubious pocket handkerchief.   --Thackeray.
 3. Of uncertain event or issue; as, in dubious battle.
 Syn: -- Doubtful; doubting; unsettled; undetermined; equivocal; uncertain.  Cf. Doubtful.

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 dubious
      adj 1: fraught with uncertainty or doubt; "they were doubtful that
             the cord would hold"; "it was doubtful whether she
             would be admitted"; "dubious about agreeing to go"
             [syn: doubtful]
      2: open to doubt or suspicion; "the candidate's doubtful past";
         "he has a dubious record indeed"; "what one found
         uncertain the other found dubious or downright false"; "it
         was more than dubitable whether the friend was as
         influential as she thought"- Karen Horney [syn: doubtful,
          dubitable, in question(p)]
      3: not convinced; "they admitted the force of my argument but
         remained dubious"