1
: lasting or continuing through life
a lifelong friendship
2
Examples of lifelong in a Sentence
He had a lifelong love of nature.
Recent Examples on the Web
Brentwood tech entrepreneur Adam Miller, who describes himself as a lifelong Democrat, said the city is on a downward trajectory and needs stronger management.
—
David Zahniser, Los Angeles Times, 7 Feb. 2026
Known as Untitled Kyoto, the film will follow three best friends who meet up in Kyoto to rekindle their lifelong friendships.
—Andreas Wiseman, Deadline, 6 Feb. 2026
But one of the stars on the show for 11 seasons – Patrick Dempsey – is from New England and a lifelong Red Sox fan.
—Kelsie Hoffman, CBS News, 6 Feb. 2026
His daughter and Fears traced his path into radio to a lifelong relationship with church and music.
—Kansas City Star, 6 Feb. 2026
See All Example Sentences for lifelong
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David Zahniser, Los Angeles Times, 7 Feb. 2026
Known as Untitled Kyoto, the film will follow three best friends who meet up in Kyoto to rekindle their lifelong friendships.
—Andreas Wiseman, Deadline, 6 Feb. 2026
But one of the stars on the show for 11 seasons – Patrick Dempsey – is from New England and a lifelong Red Sox fan.
—Kelsie Hoffman, CBS News, 6 Feb. 2026
His daughter and Fears traced his path into radio to a lifelong relationship with church and music.
—Kansas City Star, 6 Feb. 2026
See All Example Sentences for lifelong
Cite this Entry
“Lifelong.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/lifelong. Accessed 12 Feb. 2026.
Copy CitationKids Definition
lifelong
adjective
life·long
ˈlī-ˌflȯŋ 
: continuing or lasting through life
a lifelong love for trees
a lifelong friendship
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Merriam-Webster unabridged
