Meaning of the word deficient in English

What does deficient mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

deficient

US /dɪˈfɪʃ.ənt/
UK /dɪˈfɪʃ.ənt/
"deficient" picture

Adjective

not having enough of something, especially something that is essential

Example:
The diet was deficient in vitamins and minerals.
His knowledge of history is somewhat deficient.
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