资料来源 : pyDict

令人毛骨悚然地

资料来源 : Webster's Revised Unabridged Dictionary (1913)

Appalling \Ap*pall"ing\, a.
   Such as to appall; as, an appalling accident. --
   {Ap*pall"ing*ly}, adv.

资料来源 : WordNet®

appallingly
     adv : to an appalling extent; "the prisoners were appallingly
           thin"