Collins Concise English Dictionary © HarperCollins Publishers::

dubious /ˈdjuːbɪəs/ adj
  1. marked by or causing doubt: a dubious reply
  2. unsettled in mind; uncertain; doubtful
  3. of doubtful quality; untrustworthy: a dubious reputation
  4. not certain in outcome
Etymology: 16th Century: from Latin dubius wavering

ˈdubiously adv ˈdubiousness n

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