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- DictionaryDe·fi·cient/dəˈfiSH(ə)nt/
adjective
- 1. not having enough of a specified quality or ingredient: "this diet is deficient in vitamin B"
- 2. having an intellectual disability. dated, offensive
deficient. adjective. /dɪˈfɪʃnt/. deficient (in something) not having enough of something, especially something that is essential a diet that is deficient in vitamin A. Take your English to the next level. The Oxford Learner’s Thesaurus explains the difference between groups of similar words.
adj. 1. Lacking an essential quality or element: deficient in common sense. 2. Inadequate in amount or degree; insufficient: a deficient education. [Latin dēficiēns, dēficient-, present participle of dēficere, to fail, be wanting; see defect .] de·fi′cient n. de·fi′cient·ly adv.
1. : not having enough of something that is important or necessary. a nutritionally deficient diet. — usually + in. a diet deficient in certain vitamins. 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.
From Longman Dictionary of Contemporary English de‧fi‧cient /dɪˈfɪʃənt/ adjective formal 1 not containing or having enough of something Women who are dieting can become iron deficient. deficient in patients who were deficient in vitamin C 2 not good enough Our prisons are our most deficient social service.
deficient/dɪˈfɪʃənt/adj. lacking some essential; incomplete; defective. inadequate in quantity or supply; insufficient. Etymology: 16th Century: from Latin dēficiēns lacking, from dēficere to fall short; see defectdeˈficientlyadv. 'deficient' also found in these entries (note: many are not synonyms or translations):
The meaning of DEFICIENT is lacking in some necessary quality or element. How to use deficient in a sentence. lacking in some necessary quality or element; not up to a normal standard or complement : defective…
adjective. These are words and phrases related to deficient. Click on any word or phrase to go to its thesaurus page. Or, go to the definition of deficient. A diet deficient in vitamins is unhealthy. Synonyms. lacking. inadequate. insufficient. short on. Antonyms. sufficient. adequate. His tests indicate that he is mentally deficient. Synonyms.
