a.

1. 无耐心的，不耐烦的；无法忍受的[（+of/at/with）]
   He was very impatient with students who could not follow him.

   他对听不懂他讲课的学生很不耐心。

2. 切盼的，急欲的[F][（+for）][+to-v]
   Philip was impatient to learn the news.

   菲利浦急于想知道这个消息。

adj.

1. having or showing a lack of patience or tolerance.
2. restlessly eager.