MIDDLE AGES Synonyms: 23 Similar and Opposite Words

middle age

noun

Definition of middle age

as in adulthood

the period in a person's life from about age 40 to about age 60 as our generation approaches middle age When he reached middle age, he became suddenly obsessed with reliving his carefree college years.

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Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.

Recent Examples of middle age High blood pressure, abnormal blood lipids, abdominal fat and impaired glucose regulation don’t suddenly materialize in middle age. — Paul McClure 23, New Atlas, 23 Aug. 2026 Visualizing Middle-Age Malaise Whitaker’s approach to middle age appears throughout the series. — Dana Feldman, Forbes.com, 17 Aug. 2026 The guests are millennial to middle age couples, mostly escaping LA or San Francisco! — Condé Nast, Condé Nast Traveler, 15 Aug. 2026 Before middle age, the two main vision disorders are myopia and hyperopia, or nearsightedness and farsightedness. — E. Tammy Kim, New Yorker, 15 Aug. 2026 See All Example Sentences for middle age

Recent Examples of Synonyms for middle age

Noun

Part of the appeal lies in growing research into neuroplasticity, which has overturned the idea that the brain becomes fixed in adulthood, revealing its capacity to rewire itself and adapt throughout life.

— Amy O’Brien, Vogue, 3 Nov. 2026
For generations, buying a first home marked the beginning of adulthood and financial independence.

— Chuck Bonfiglio, The Orlando Sentinel, 1 Nov. 2026

Definition of adulthood

Noun

And because the Treasury kept the debt’s average maturity short, high interest rates are hitting the budget very quickly.

— Veronique De Rugy, Oc Register, 7 Nov. 2026
Currently, to meet the massive capital requirements of AI infrastructure, American tech giants are expanding financing channels into overseas markets like Europe while extending bond maturities.

— , CNBC, 6 Nov. 2026

Definition of maturity

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middle

middle age

middle-aged

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“Middle age.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/middle%20age. Accessed 9 Nov. 2026.

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Synonyms of middle age

noun

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