Dubious (?), a. [L. dubius, dubiosus, fr. duo two. See Two, and cf. Doubt.] 1. Doubtful or not settled in opinion; being in doubt; wavering or fluctuating; undetermined. “Dubious policy.” Sir T. Scott.
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A dubious, agitated state of mind. Thackeray.
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2. Occasioning doubt; not clear, or obvious; equivocal; questionable; doubtful; as, a dubious answer.
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Wiping the dingy shirt with a still more dubious pocket handkerchief. Thackeray.
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3. Of uncertain event or issue; as, in dubious battle.

Syn. -- Doubtful; doubting; unsettled; undetermined; equivocal; uncertain. Cf. Doubtful.
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