資料來源 : pyDict

空虛地,無表情地

資料來源 : Webster's Revised Unabridged Dictionary (1913)

Vacantly \Va"cant*ly\, adv.
   In a vacant manner; inanely.

資料來源 : WordNet®

vacantly
     adv : in a vacant manner; "she was staring vacantly into the room"