deficient
1 ENTRIES FOUND:
Britannica Dictionary definition of DEFICIENT
[more deficient; most deficient]
1
:
not having enough of something that is important or necessary
— usually + in
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a nutritionally deficient diet
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a diet deficient in certain vitamins
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a man who is deficient in judgment [=a man whose judgment is poor]
-
students who are deficient [=lacking] in their knowledge of history
2
:
not good enough
:
not as good as others
-
mentally deficient
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Several bridges in the city are structurally deficient.
