lifelong

adjective

life·​long ˈlīf-ˌlȯŋ 

1

: lasting or continuing through life

a lifelong friendship

2

: long-standing

Examples of lifelong in a Sentence

He had a lifelong love of nature.

Recent Examples on the Web

Crow-Armstrong’s parents, Matt Armstrong and Ashley Crow, along with his girlfriend and lifelong friends who traveled to be present for the announcement, all came together to share in his MVP moment. — Meghan Montemurro, Chicago Tribune, 13 Nov. 2026

Neither of the two knew it yet, but the trip would pull Krukoff into a lifelong obsession with the plants and remedies of the Amazon, the world of economic botany, and, before long, the Flying Death. — Literary Hub, 12 Nov. 2026

The organization focuses on empowering youth to cultivate focus, emotional regulation, and resilience — fostering a strong foundation for lifelong well-being. — Rashad Williams, CBS News, 12 Nov. 2026

This is pure lifelong ignorance with zero plans to correct that. — Jason Newman, Rolling Stone, 12 Nov. 2026

Word History

First Known Use

1613, in the meaning defined at sense 1

Rhymes for lifelong

• evensong
• livelong
• overlong
• vietcong
• agung
• along
• belong
• birdsong
• furlong
• headlong
• headstrong
• plainsong

Kids Definition

lifelong

adjective

life·​long ˈlī-ˌflȯŋ 

: continuing or lasting through life

a lifelong love for trees

a lifelong friendship