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
Often, a bit of adjusting keeps the family budget balanced but sometimes those worries can spiral out of control, resulting in lifelong emotional and material consequences, from guilt and shame to insurmountable debt.
—
Elisabeth Sherman, Parents, 27 Jan. 2025
Kennedy is also right to say the MMR vaccine doesn’t always provide lifelong immunity to the mumps virus.
—Benjamin Mazer, The Atlantic, 27 Jan. 2025
When implemented correctly, crate training is not only practical for owners but also a real benefit to a dog's lifelong comfort and security.
—Joel Thayer, Newsweek, 27 Jan. 2025
But more often, identity theft leads to severe consequences, like losing control over your financial accounts, having your credit score affected or even losing lifelong savings.
—Kurt Knutsson, Cyberguy Report, Fox News, 27 Jan. 2025
See all Example Sentences for lifelong 
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Elisabeth Sherman, Parents, 27 Jan. 2025
Kennedy is also right to say the MMR vaccine doesn’t always provide lifelong immunity to the mumps virus.
—Benjamin Mazer, The Atlantic, 27 Jan. 2025
When implemented correctly, crate training is not only practical for owners but also a real benefit to a dog's lifelong comfort and security.
—Joel Thayer, Newsweek, 27 Jan. 2025
But more often, identity theft leads to severe consequences, like losing control over your financial accounts, having your credit score affected or even losing lifelong savings.
—Kurt Knutsson, Cyberguy Report, Fox News, 27 Jan. 2025
See all Example Sentences for lifelong
Dictionary Entries Near lifelong
Cite this Entry
“Lifelong.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/lifelong. Accessed 30 Jan. 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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