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
They aren't meant to provide lifelong or even long-term income streams.
—
Hugh Cameron, MSNBC Newsweek, 17 Sep. 2025
One filled with beach houses, lifelong friendships and the kind of love triangles many never experienced in reality.
—Mark Travers, Forbes.com, 16 Sep. 2025
Redford’s lifelong impact on the film industry was recognized in 2002 with an honorary Oscar.
—Tricia Escobedo, CNN Money, 16 Sep. 2025
The actor was a lifelong activist whose films often amplified social and environmental causes and indicted the political system, including 1972’s The Candidate and 1976’s All the President’s Men.
—Larisha Paul, Rolling Stone, 16 Sep. 2025
See All Example Sentences for lifelong
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Hugh Cameron, MSNBC Newsweek, 17 Sep. 2025
One filled with beach houses, lifelong friendships and the kind of love triangles many never experienced in reality.
—Mark Travers, Forbes.com, 16 Sep. 2025
Redford’s lifelong impact on the film industry was recognized in 2002 with an honorary Oscar.
—Tricia Escobedo, CNN Money, 16 Sep. 2025
The actor was a lifelong activist whose films often amplified social and environmental causes and indicted the political system, including 1972’s The Candidate and 1976’s All the President’s Men.
—Larisha Paul, Rolling Stone, 16 Sep. 2025
See All Example Sentences for lifelong
Cite this Entry
“Lifelong.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/lifelong. Accessed 18 Sep. 2025.
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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