What is another word for deficient?

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Adjective
Significantly below an amount or level that is adequate
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“A diet deficient in vitamins.”
Adjective
Insufficient or inadequate
“Similarly, she has not observed or complained about any deficient workmanship in the insulation and drywall and she believes that none exists with respect to her residence.”
Adjective
Not having all the necessary or appropriate parts
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Adjective
Low in quality or below expectations
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Adjective
Not having or showing the necessary skills to do something successfully
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Adjective
Pertaining to or resembling someone very stupid
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Adjective
Having no use, purpose or reason
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Adjective
Out of practice in a skill or subject
Adjective
Not conclusive, not leading to a conclusion
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Adjective
Having distinct limits or boundaries
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Adjective
Incapable of, or indisposed to, quick and effective action
Adjective
Extremely poor and lacking the means to provide for oneself
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Adjective
Deficient in something needed or usual
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Adjective
(of a fabric) Made of light material
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