Having a blemish or flaw of any kind; incomplete; faulty.

有缺点的；不完全的；有过失的。

Mentally deficient or subnormal.

精神不健全的；精神失常的。

Lacking some of the usual grammatical forms.

【文法】变化不全的。

A person who is subnormal physically or mentally.

(精神上或身体上)有缺陷的人。