dubiou

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. [ 1913 Webster ]

A dubious, agitated state of mind. Thackeray. [ 1913 Webster ]

2. Occasioning doubt; not clear, or obvious; equivocal; questionable; doubtful; as, a dubious answer. [ 1913 Webster ]

Wiping the dingy shirt with a still more dubious pocket handkerchief. Thackeray. [ 1913 Webster ]

3. Of uncertain event or issue; as, in dubious battle.

Syn. -- Doubtful; doubting; unsettled; undetermined; equivocal; uncertain. Cf. Doubtful. [ 1913 Webster ]