a.

1. 击退的；驱除的；抵御的；排斥的
   a mosquito-repellent spray

   一种驱蚊喷雾剂

2. 令人厌恶的；令人反感的[（+to）]
   The idea of doing that is repellent to him.

   一想到做那种事他就恶心。

3. 防水的

n.[U][C]

1. 防水剂
2. 驱虫剂

adj.

1. able to repel a particular thing; impervious to:
   water-repellent nylon.
2. causing disgust or distaste.

n.