Dictionary.com
Thesaurus.com
Synonyms

lifelong

American  
[lahyf-lawng, -long] / ˈlaɪfˌlɔŋ, -ˌlɒŋ /

adjective

  1. lasting or continuing through all or much of one's life.

    lifelong regret.


lifelong British  
/ ˈlaɪfˌlɒŋ /

adjective

  1. lasting for or as if for a lifetime

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of lifelong

1750–60; life + long 1 (adv.)

Explanation

Something lifelong lasts your entire life, or for most of it. A lifelong friendship might have begun in kindergarten, and it continues today. You can describe your grandfather as a lifelong Republican if he's voted for the Republican candidate in every election all through his life. You could also say you have a lifelong hatred of green vegetables if you've refused broccoli and spinach since you first ate solid food. The word lifelong, meaning "continuing for a lifetime," was coined in the nineteenth century.

Keep Reading on Vocabulary.com

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.

See Examples For:

They made pizza and played video games and rode Walters’ motorcycle, sparking a lifelong interest.

From Slate Sep. 17, 2026

Being able to quantify the lifelong impact of student debt could have an impact on how Americans think about the “return on investment” of borrowing for higher education.

From MarketWatch Sep. 15, 2026

It will see Evans star as Martin Gilmour, a journalist shaped by his lifelong friendship with a wealthy and charismatic politician played by Aberystwyth-born Tom Cullen.

From BBC Sep. 14, 2026

The people want to pack it, said Costa Mesa’s Travis Fuller, another lifelong Bruin fan.

From Los Angeles Times Sep. 13, 2026

Waters, a journalist by profession, had written two books on the variation, both of which he presented to Bobby—eventually, he’d teach the boy the intricacies of the game and become a lifelong friend.

From "Endgame" by Frank Brady

Vocabulary.com logo
by dictionary.com

Join 14,000,000 vocabulary learners

Start learning new words today on VocabTrainer.
You'll remember them forever.

Start training