lon·​gev·​i·​ty | \ län-ˈje-və-tē How to pronounce longevity (audio) , lȯn- \

Definition of longevity

1a : a long duration of individual life The members of that family are noted for their longevity.
b : length of life a study of longevity
2 : long continuance : permanence, durability longevity in office is also an asset— Spencer Parratt

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As living conditions improve and the science of medicine advances, the longevity of the average American has increased greatly, from about 45 years in 1900 to over 75 years today. But the most impressive human longevity is nothing compared to the 400-year lifespan of an ocean clam found near Iceland, or the 5,000-year lifespan of the bristlecone pine, a tree found in the western U.S. We may use longevity to talk not only about actual lives but also of the useful "life" of things: the life of your car's tires or the shingles on your roof, for example.

Examples of longevity in a Sentence

His longevity was remarkable considering he had been so sick when he was a child. Better medical treatment has led to greater longevity. a study of human longevity The longevity of a car's tires depends on how the car is driven. They're trying to increase the product's longevity.
Recent Examples on the Web Her longevity and dedication to philanthropy only furthered that image. Maureen Lee Lenker, EW.com, 11 Aug. 2022 The extended wheelbase is also said to boost tire longevity and consistency of grip over longer periods on track. Caleb Miller, Car and Driver, 29 July 2022 Her lab studies female longevity and the aging brain. Steven Strogatz, Quanta Magazine, 27 July 2022 Check out his thoughts on the culture, longevity, and taking over the world with Atlanta themes. Essence, 19 July 2022 Across the board, all types of turtles showed high longevity and extremely low aging rates. Wired, 19 July 2022 Despite that longevity and the promise of a healthy new paycheck, Johnson’s long-term place in the Spurs’ renovation project remains to be seen. Jeff Mcdonald, San Antonio Express-News, 16 July 2022 The public ranks market risk at the top, followed by longevity and health risks. Russ Wiles, The Arizona Republic, 10 July 2022 But the longevity and staying power of the Charles Heidsieck brand — nearly 200 years later — required deeper roots than those indicated by a soft sell delivered from white gloved hands. Cathy Huyghe, Forbes, 7 July 2022 See More

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'longevity.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of longevity

1569, in the meaning defined at sense 1a

History and Etymology for longevity

Late Latin longaevitas, from Latin longaevus long-lived, from longus long + aevum age — more at aye

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Time Traveler for longevity

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The first known use of longevity was in 1569

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longevity pay

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Statistics for longevity

Last Updated

15 Aug 2022

Cite this Entry

“Longevity.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/longevity. Accessed 18 Aug. 2022.

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More Definitions for longevity


lon·​gev·​i·​ty | \ län-ˈjev-ət-ē, lȯn- How to pronounce longevity (audio) \
plural longevities

Medical Definition of longevity

1 : a long duration of individual life attributed his longevity to daily exercise and a healthy diet
2 : length of life studies in longevity


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