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Synonyms

inequality

American  
[in-i-kwol-i-tee] / ˌɪn ɪˈkwɒl ɪ ti /

noun

  • inequalities
    plural
  1. the condition of being unequal; lack of equality; disparity.

    inequality of size.

    1. social or economic disparity: widening income inequality in America.

      inequality between rich and poor people;

      widening income inequality in America.

    2. unequal opportunity or treatment resulting from this disparity.

      inequality in healthcare and education.

  2. disparity or relative inadequacy in natural endowments.

    a startling inequality of intellect, talents, and physical stamina.

  3. injustice; favoritism; partiality.

  4. unevenness, as of surface.

  5. an instance of unevenness.

  6. variableness, as of climate.

  7. Astronomy.

    1. any component part of the departure from uniformity in astronomical phenomena, especially in orbital motion.

    2. the amount of such a departure.

  8. Mathematics. a statement that two quantities are unequal, indicated by the symbol ≠; alternatively, by the symbol <, signifying that the quantity preceding the symbol is less than that following, or by the symbol >, signifying that the quantity preceding the symbol is greater than that following.


inequality British  
/ ˌɪnɪˈkwɒlɪtɪ /

noun

  1. the state or quality of being unequal; disparity

  2. an instance of disparity

  3. lack of smoothness or regularity

  4. social or economic disparity

  5. maths

    1. a statement indicating that the value of one quantity or expression is not equal to another, as in xy

    2. a relationship between real numbers involving inequality: x may be greater than y, denoted by x > y, or less than y, denoted by x < y

  6. astronomy a departure from uniform orbital motion

"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

Noun Inflected Forms

Etymology

Origin of inequality

First recorded in 1375–1425; late Middle English inequalite “unevenness, disparity,” from Old French inequalite, from Latin inaequālitāt- stem of inaequālitās “irregularity, inequity, inconsistency”; see origin at in- 3, equality

Explanation

When there's an inequality, something is out of balance and things are not equal. An inequality occurs in math when the two quantities are not the same measure or amount. In society, an inequality occurs when rights and privileges are not applied fairly. The civil rights movement in the 1950s and 60s, for example, arose because of inequalities between the races. Blacks in the South could not sit in the front of the bus, drink from the same water fountains as whites, or even attend the same schools. People protested this inequality in many ways, including bus strikes, sit-ins, and marches.

Keep Reading on Vocabulary.com

Vocabulary lists containing inequality

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:

But as inequality has supercharged the gap between workers with the highest and lowest incomes, wages above the cap have grown much faster than those under the cap, Romig said.

From MarketWatch Aug. 14, 2026

But his brand of market reformism, which lifted millions out of poverty but unleashed inequality, fell out of vogue with the ascent of Xi Jinping, China's most powerful leader in generations, in 2012.

From Barron's Aug. 12, 2026

“Income inequality and the wealth divide in America have widened dramatically, and so has the gap in longevity and health between rich and poor.”

From Salon Aug. 11, 2026

Chair Matthew Easter says it will also create "division" in schools, because branded uniforms help to reduce inequality and improve behaviour.

From BBC Aug. 10, 2026

Yet the roots of inequality in the modern world lie far back in prehistory.

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

The state judge previously threw out two terrorism-related murder charges, saying murder committed for ideological reasons—such as an alleged attempt to draw attention to inequalities in the healthcare system—doesn’t meet the legal definition of terrorism.

From The Wall Street Journal Aug. 13, 2026

Locke said many Texans have drawn on their faith “to attack inequalities, provide for the needy and, yes, advocate for environmental protections.”

From Salon Aug. 3, 2026

He added that the trust was committed to reducing health inequalities for people with learning disabilities and had made significant improvements to care.

From BBC Jul. 13, 2026

"We are committed to reducing health inequalities, GP patient satisfaction is up, and waiting lists are down by 340,000 compared to July 2024," they said.

From BBC Jul. 12, 2026

Those historical inequalities have cast long shadows on the modern world, because the literate societies with metal tools have conquered or exterminated the other societies.

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

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