a.

1. 【美】【口】即席的
   The president's off-the-cuff remarks were better than his official statements.

   總統的即席演講勝過他的正式演說。

2. 未經思索的
   He called me "darling" off-the-cuff.

   他未經思索地稱呼我為「親愛的」。