n.(想象力等)貧乏；無聊；空白
Leisure is enjoyable, while vacuity is suffering. 閑暇是享受的，而空虛是痛苦的。
He felt a little boring and walked into the garden in order to avoid the vacuity. 他開始覺得無聊了,他跑到了花園中游玩。
Vacuity contrast group was not treated. 空白對照組不作處理。
