defective

形容词 defective:

1. having a defect
   同义词：faulty
2. markedly subnormal in structure or function or intelligence or behavior
3. not working properly
   同义词：bad

1. She has a defective utterance.
   她发音有缺陷。
2. A damaged or defective object or device.
   损坏物，缺陷物损坏的或有缺陷的物体或设备
3. He is defective in moral sense.
   他不能分辨善恶。
4. He is mentally defective.
   他智力不健全。

de.fec.tive

adj.Abbr. def.（形容词）缩写 def.

Having a defect; faulty:
有缺点的：有毛病的；不完善的：
例句：
a defective appliance.
有毛病的器具

Marked by subnormal structure, function, intelligence, or behavior:
有缺陷的：具有结构、功能、智力或举止行为不正常的特点的：
例句：
defective speech.
有缺陷的演讲

Grammar Lacking one or more of the inflected forms normal for a particular category of word, as the verbmay in English.
【语法】 不完全变化的，变形不全的：一特定词类缺乏一种或多种正常的词形变化形式的，如英语中的动词may
n.Offensive （名词）【无礼用语】
One that is physically or mentally deficient.
有缺陷的人：身心不健全的人

【引伸】
defec.tively
adv.（副词）
defec.tiveness
n.（名词）