n.(想象力等)贫乏；无聊；空白
Leisure is enjoyable, while vacuity is suffering. 闲暇是享受的，而空虚是痛苦的。
He felt a little boring and walked into the garden in order to avoid the vacuity. 他开始觉得无聊了,他跑到了花园中游玩。
Vacuity contrast group was not treated. 空白对照组不作处理。
