inequality

American  

[in-i-kwol-i-tee] / ˌɪn ɪˈkwɒl ɪ ti /

noun

plural

inequalities

1. the condition of being unequal; lack of equality; disparity.

   inequality of size.

2. 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.

3. disparity or relative inadequacy in natural endowments.

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

4. injustice; favoritism; partiality.

5. unevenness, as of surface.

6. an instance of unevenness.

7. variableness, as of climate.

8. Astronomy.

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

   2. the amount of such a departure.

9. 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.

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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 x ≠ y

   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

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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.

Example Sentences

It received £20m from the Levelling Up Fund, designed to reduce regional inequality.

From BBC • May 4, 2026

This story about student debt relief was produced by the Hechinger Report, a nonprofit, independent news organization focused on inequality and innovation in education.

From MarketWatch • Apr. 30, 2026

Ashley understands he’s floundering toward some understanding of income inequality, although he never quite gets there.

From Salon • Apr. 23, 2026

The participants raised concerns over how global debates on AI remain largely driven by technical advances and commercial applications, with less focus on social impacts in areas including labour markets, inequality and public services.

From Barron's • Apr. 21, 2026

Thus at the peak of the Civil Rights Movement, activists and others began to turn their attention to economic problems, arguing that socioeconomic inequality interacted with racism to produce crippling poverty and related social problems.

From "The New Jim Crow" by Michelle Alexander

Related Words

• bias
• difference
• discrimination
• disparity
• diversity
• injustice
• unfairness