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sufficiency

American  
[suh-fish-uhn-see] / səˈfɪʃ ən si /

noun

  1. the state or fact of being sufficient; adequacy.

  2. a sufficient number or amount; enough.

  3. adequate provision or supply, especially of wealth.


sufficiency British  
/ səˈfɪʃənsɪ /

noun

  1. the quality or condition of being sufficient

  2. an adequate amount or quantity, as of income

  3. archaic efficiency

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Word Forms

Etymology

Origin of sufficiency

1485–95; < Late Latin sufficientia; see sufficient, -ency

Explanation

A sufficiency is an adequate amount of something. Before a winter storm, you should probably make sure you have a sufficiency of food stored in your house. The noun sufficiency means the quality of being enough, adequate, or sufficient. Due to financial constraints, your local school district may be willing to settle for educational sufficiency, but hopefully you will hold the district to a higher standard than offering merely an adequate education to students. The opposite of sufficiency is insufficiency, meaning an inadequate amount. Of the two, you will likely hear insufficiency more often than sufficiency in conversation.

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Vocabulary lists containing sufficiency

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

Rex Frazier, a former deputy commissioner at the California Department of Insurance, said that in the situation that the insurers find themselves, the state regulator will be looking at a company’s capital sufficiency.

From Los Angeles Times Aug. 16, 2026

And they noticed a cyclical spike in lower food sufficiency during the NFL season.

From MarketWatch Jun. 10, 2026

As for threats, when you resort to them, you’re revealing you are uncertain of the sufficiency of your power.

From The Wall Street Journal Apr. 9, 2026

She said that decision had been made after the prosecution "reconsidered the sufficiency of the evidence" in relation to the charge.

From BBC Feb. 18, 2026

Instead of having fluctuating populations that periodically outran their resources and starved, they maintained smaller populations that enjoyed an abundance of food in good years and a sufficiency in bad years.

From "Guns, Germs, and Steel: The Fates of Human Societies" by Jared M. Diamond

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