mental vacuity 思想空虚
emotional vacuity 情感空虚
the vacuity of the statement 话语的空洞
A: I couldn't understand the point of his lecture; it was pure vacuity.
A：我无法理解他讲座的重点；简直是一片空洞。
B: It's disappointing how the film lacks depth and is filled with vacuity.
B：这部电影缺乏深度，充满了空洞，真令人失望。
1) 物理意义上的空虚或空白
2) 精神或思想上的空虚
3) 缺乏实质内容或意义的空泛
1. 空虚；空白；空洞
noun
1. The quality or state of being empty; emptiness or lack of content or substance.
Synonym: emptiness, void, blankness