Source : Webster's Revised Unabridged Dictionary (1913)

Displeasing \Dis*pleas"ing\, a.
   Causing displeasure or dissatisfaction; offensive;
   disagreeable. -- {Dis*pleas"ing*ly}, adv. --
   {Dis*pleas"ing*ness}, n. --Locke.

Source : WordNet®

displeasingly
     adv : in a displeasing manner; "he made displeasingly cutting
           remarks about his friends"