a.

1. 虚弱的，衰弱的；无力的
   She is feeble from sickness.

   她因为生病而变得虚弱。

2. （智力，性格等）弱的，软弱的
   He is a man with a feeble personality.

   他是个个性软弱的人。

3. 拙劣无效的；站不住脚的
   Her argument was feeble.

   她的论点站不住脚。

4. 微弱的；薄弱的
   A feeble cry came from the next room.

   从隔壁房间里传来低弱的叫喊声。

adj.

1. lacking physical strength.
   ▸lacking strength of character.
2. failing to convince or impress:
   a feeble excuse.