1. 名詞
   不可數名詞: 不重要, 微小
   無足輕重, 無意義
   無足輕重的人
   無足輕重的事
   無足輕重之物
   無足輕重的東西
   

   同義字詞
   immateriality,inconsequence,inconsequentiality,inconsiderableness,insignificance,littleness,negligibility,pettiness,slightness,smallness,triviality
   

例句

1. Other than air, there is practically insignificancy that a outlook needs every day.