The meaning of LIFELONG is lasting or continuing through life. How to use lifelong in a sentence.

Babies born too soon, before 37 weeks in the womb, can face serious, lifelong health problems if they survive.

Definition of lifelong adjective in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.

lifelong in American English (ˈlaifˌlɔŋ, -ˌlɑŋ) adjective lasting or continuing through all or much of one's life

Define lifelong. lifelong synonyms, lifelong pronunciation, lifelong translation, English dictionary definition of lifelong. adj. Continuing for a lifetime. American Heritage® Dictionary of the English Language, …

WordReference Random House Unabridged Dictionary of American English © 2026 life•long (līf′ lông′, -long′), adj. lasting or continuing through all or much of one's life: lifelong regret.

Lasting or continuing through life: as, a lifelong struggle with poverty; a lifelong friend. from the GNU version of the Collaborative International Dictionary of English.

LIFELONG definition: lasting or continuing through all or much of one's life. See examples of lifelong used in a sentence.

lifelong definition: continuing through a person's whole life. Check meanings, examples, usage tips, pronunciation, domains, and related words. Discover expressions like "lifelong dream", "lifelong …

From Longman Dictionary of Contemporary English life‧long /ˈlaɪflɒŋ $ -lɒːŋ/ adjective [only before noun] continuing or existing all through your life She became a lifelong friend of ours.