vacuity

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柯林斯词典

vacuity /væˈkjuːɪtɪ, və-/

1. N-UNCOUNT If you refer to the vacuity of something or someone, you are critical of them because they lack intelligent thought or ideas. (思想的)贫乏[正式] [usu with poss]
His vacuity was a handicap in these debates. 思想贫乏是他在这些辩论中的一个弱点。
...a campaign notable for its intellectual vacuity and personal nastiness. ...一个以思想贫乏和人身攻击闻名的竞选活动。