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.
It supports the idea that nature's long-lived species may contain biological tools that can be studied, adapted, and possibly used to improve health in other animals.
From Science Daily • May 10, 2026
These animals were part of the multituberculates, a long-lived group that first appeared during the Jurassic Period and persisted for more than 100 million years before eventually going extinct.
From Science Daily • Apr. 27, 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
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 a long-lived fissionable isotope, especially one that could be chemically separated from its uranium grandparent, might be especially suitable for a bomb.
From "Big Science" by Michael Hiltzik
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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.