adjective
Other Word Forms
Derived Forms
Etymology
Origin of long-lived
late Middle English word dating back to 1375–1425; see origin at long 1, lived
Explanation
Long-lived things have been around for a very long time. By the smell of your couch, you may want to describe it as long-lived. You can describe people who live to be quite old as long-lived: "All the men in my family are remarkably long-lived." It's also a good word for talking about inanimate objects that keep working for a long time, or even ideas that stick around: "His childhood plan to join the circus turned out to be long-lived — it was still his dream at the age of 35."
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.
The work, published in Nature in 2023, suggested that at least some longevity traits that evolved in long-lived animals may be adaptable beyond the species that developed them.
From Science Daily • May 10, 2026
Astronaut Jeremy Hansen said the moment should "challenge this generation and the next, to make sure this record is not long-lived."
From Barron's • Apr. 7, 2026
Unlike fission, nuclear fusion generates “no long-lived radioactive waste,” Bechtel says, and unlike fossil fuels, it doesn’t involve burning finite resources and creating carbon emissions.
From The Wall Street Journal • Apr. 6, 2026
Another factor to consider is that my family tends to be long-lived — I still have a grandparent living independently at age 102.
From MarketWatch • Feb. 27, 2026
But I said to myself: “After all he comes of a long-lived family on his mother’s side. There is time yet. Wait!”
From "The Fellowship of the Ring" by J.R.R. Tolkien
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Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.