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Synonyms

inadequacy

American  
[in-ad-i-kwuh-see] / ɪnˈæd ɪ kwə si /

noun

  • inadequacies
    plural
  1. Also inadequateness the state or condition of being inadequate; insufficiency.

  2. something inadequate; defect.

    The plan has many inadequacies.


Other Word Forms

Noun Inflected Forms


Etymology

Origin of inadequacy

First recorded in 1780–90; inadequ(ate) + -acy


Explanation

An inadequacy is something that is not enough. If you get a bad grade, it may reveal an inadequacy in your approach to studying. The syllable qua in inadequacy rhymes with duh, and the accent is on the second syllable: "in-AD-uh-quh-see." You know that in- means "not," and the suffix y means "the quality or state of." But what is that middle part? Adaequare is the Latin word for "to make equal." So, inadequacy is the state of not being equal — or enough — for something.

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Vocabulary lists containing inadequacy

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:

Being put on a PIP by someone who used to be your equal probably stirs up feelings of inadequacy.

From MarketWatch ● Jul. 29, 2026

A report released recently by IGNES, a French trade alliance, warns of “a massive inadequacy of housing to cope with high temperatures.”

From The Wall Street Journal ● Jun. 25, 2026

And it’s all a result of his feelings of inadequacy, a fail-son’s greatest flaw.

From The Wall Street Journal ● Jun. 22, 2026

Secondly, the supermarket must pass the "inadequacy" test in which it has to show the number of existing licensed premises in an area is inadequate to meet the needs of the public.

From BBC ● Apr. 9, 2026

Black newspapers and their readers wasted no time in making the link between America’s inadequacy in space and the dreadful conditions facing many black students in the South.

From "Hidden Figures" by Margot Lee Shetterly

Tenor Ryan Bryce Johnson displayed comic flair as Neal, who covers his inadequacies with tall tales.

From The Wall Street Journal ● Sep. 23, 2026

“Marilyn’s reading formed a concerted effort to overcome any inadequacies she perceived in herself,” Crowther writes.

From Los Angeles Times ● May 25, 2026

“Most of the problems with core statistics result from inadequacies in the way ONS has made decisions, planned and budgeted, and managed risks,” the review concluded.

From The Wall Street Journal ● Oct. 8, 2025

Mr Cottrell also spoke of "the inadequacies of those who talk a good game, but whose words are never embodied in action".

From BBC ● Dec. 25, 2024

Recognizing the inadequacies of postmodern history of science does not mean that we should simply go back to Kuhn or to Koyré.

From "The Invention of Science" by David Wootton

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