problematically
  (ad.)有問題地
  Prob·lem·at·ic Prob·lem·at·ic·al a.
  1. Having the nature of a problem; not shown in fact; questionable; uncertain; unsettled; doubtful; as, his theory is problematic because it fails to explain several facts. -- Prob*lem*at*ic*al*ly, adv.
     Diligent inquiries into remote and problematical guilt leave a gate wide open to . . . informers.   --Swift.
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  problematically
       adv : in such a way as to pose a problem