unable

形容词

1. 1

   不能、无法、没办法后接不定词 to

   She was unable to attend the meeting because of illness.

   她因为生病而无法出席会议。

2. 2

   没有能力的、无力的

   After the stroke, he was unable to walk without help.

   中风之后，他没有人扶就走不动。

3. 3

   无资格的、无权能的法律

   A minor is legally unable to sign such a contract.

   未成年人在法律上无资格签订这类合约。