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Definition of deficiency

deficiency

/dɪˈfɪʃ.ən.si/
de · fi · cien · cy
Adverb:deficiently
•
Plural:deficiencies
•
Adjective:deficient
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deficiency Lexical Profile

deficiency Game Scores & Validity

• noun

1

A lack or shortage of something necessary, especially a nutrient or substance required for normal bodily health and function.

Example

"The doctor prescribed dietary supplements to treat her severe iron deficiency."

2

A failing, flaw, or shortcoming in quality, character, or performance.

Example

"The safety audit revealed several critical deficiencies in the building's fire alarm system."

Synonyms
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Antonyms
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• Rhymes for deficiency

• Nearby Words

defiant
defiantly
defibrillator
deficiency
deficient
deficiently
deficit

Word Origin & Etymology

Borrowed in the late 16th century from Late Latin deficientia, derived from Latin deficere ('to fail, be wanting, desert'), combining de- ('away from') and facere ('to make or do').

Cite this Entry

Wordmom. (2026). Definition of Deficiency. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/deficiency
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