superficiality|superficialities

他只看重外表的选择暴露了他的肤浅。

His choice, based solely on looks, exposed his ___superficiality.

派对上的谈话只停留在天气和时尚这些表面话题上。

The party chat was all about ___superficialities like weather and fashion.

她的谈话充满了肤浅的观点，缺乏深入的思考。

Her conversation was full of ___superficiality, lacking deep thoughts.