deficient

/dɪˈfɪʃ(ə)nt/📚 13161 33 1六级托福
If someone or something is deficient in a particular thing, they do not have the full amount of it that they need in order to function normally or work properly. 缺乏的; 不足的

adjective [原级]缺乏的,不足的;有缺点的,有缺陷的

Deaf people are sometimes treated as being mentally deficient.耳聋的人有时被看作智力不健全。

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