wanting
/ˈwɒntɪŋ/adjective
predic.
1- lacking in a certain required or necessary quality缺乏的; 不合需要的; 不够格的：
they weren't wanting in confidence
他们并不缺乏信心
the English batting technique has been found sadly wanting.
已经发现英格兰队的击球技术相当差。
1.1
- not existing or supplied; absent不存在的; 缺少的; 没有的：
mandibles are wanting in many of these insects.
这些昆虫许多没有下颚。
1.2
- informal deficient in intelligence〈非正式〉弱智的, 迟钝的。