n.[U]

1. 刺激
   When I was young I liked the acridness of certain kinds of peppers.

   我年輕的時候喜歡某些種辣椒的刺激。

2. 刻薄
   The author is best known for the acridness of his satire.

   這位作家以他刻薄的諷刺而出名。