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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Did You Know?

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.
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Recent Examples on the Web But Rick Nielsen – the band's co-founder, guitarist and chief songwriter – is almost overly modest when asked about the group's longevity. Patrick Ryan, USA TODAY, "Cheap Trick's Rick Nielsen on the band's 20th album, missing his son's birth to play with John Lennon," 8 Apr. 2021 While the region is rapidly approaching the 1 million mark for total people having received at least one dose, much remains to be learned about the longevity of the immune response that COV2 inoculation generates in the body. Gary Robbins, San Diego Union-Tribune, "UCSD will immunize up to 1,000 students and check to see if they contract COVID-19," 1 Apr. 2021 Yet so often, individuals make this decision without any counsel based on preconceived notions about their longevity and the Social Security system. Expert Panel®, Forbes, "13 Life-Changing Events Your Financial Advisor Can Help Guide You Through," 12 Mar. 2021 The company’s Vice President of legal argued Tesla’s giant center screens should not be expected to last the life span of the vehicle, raising concerns about the longevity of the cars overall. Washington Post, "Elon Musk moved to Texas and embraced celebrity. Can Tesla run on Autopilot?," 23 Feb. 2021 Meyer’s ability to cope with defeat may determine his longevity in the N.F.L. New York Times, "Urban Meyer’s Renewal in Jacksonville," 26 Apr. 2021 The longevity of the dotcom explosion was the exception. Shawn Tully, Fortune, "Is now a good time to buy stocks? Not according to this famed metric," 8 Apr. 2021 Ethan believes the longevity the film has seen is thanks in large part to one major aspect. Jeff Conway, Forbes, "‘That Thing You Do’ Cast Discuss Its 25th Anniversary, New Platinum Record And Their Love For Tom Hanks," 19 Mar. 2021 The legendary longevity of fruitcake is actually by design. Kevin Dayhoff, baltimoresun.com/maryland/carroll, "Dayhoff: Holiday seasons may come and go but fruitcake is forever," 11 Dec. 2020

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.

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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

Time Traveler

The first known use of longevity was in 1569

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Statistics for longevity

Last Updated

11 May 2021

Cite this Entry

“Longevity.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/longevity. Accessed 16 May. 2021.

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More Definitions for longevity



English Language Learners Definition of longevity

: long life : the fact of living for many years
: length of life
: the length of time that something or someone lasts or continues


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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