Dictionary.com
Thesaurus.com
Synonyms

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.

Keep Reading on Vocabulary.com

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.

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

This dissent highlights genuine legal questions about the sufficiency of evidence and the interpretation of conspiracy laws in the Brazilian context.

From Los Angeles Times • Sep. 12, 2025

For many, the individualism and accumulation of the container kitchen is aspirational, a way of demonstrating plenitude and sufficiency regardless of your actual class position or relation to labor and ownership.

From Slate • Mar. 15, 2025

Earth Stewardship and Biocultural Diversity recognise these values but also stress relational values of nature or 'nature as society'; and Degrowth straddles these types of values, prioritising sufficiency and redistribution.

From Science Daily • May 17, 2024

Mom nodded at all our preparations; she’d always appreciated self- sufficiency.

From "The Glass Castle" by Jeannette Walls