lacking

/ˈlækɪŋ/ 20高考四级六级考研雅思托福
If something or someone is lacking in a particular quality, they do not have any of it or enough of it. 缺乏的; 没有的

adjective [原级]缺乏的,不足的;没有的,缺失的,不存在的;有缺陷的,不充分的

...if your hair is lacking in lustre and feeling dry.
…如果你的头发缺乏光泽并且感觉干燥。

verb [vt. 及物动词]缺少,没有,不足(lack 的现在分词)

She's not usually lacking in confidence.
她平时并不缺乏自信心。

单词造句:
网友用“Lacking”造句精选
She felt nervous, increasingly lacking in confidence about herself. 她感到紧张,对自己越来越缺乏信心。
Why was military intelligence so lacking? 为什么军事情报如此缺乏?