Du″bi‐ous (?), 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.
A dubious, agitated state of mind. Thackeray.
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.