What does lifelong mean?
“Lifelong” means lasting throughout a person's life rather than for only a limited period. It is especially common when describing commitments, relationships, pursuits, and personal principles, as in “lifelong friendship,” “lifelong dedication,” or “lifelong learning.” The word can convey both duration and significance: something described as lifelong may have shaped a person's identity or priorities over many years. It is generally neutral rather than emotional, although its use often suggests permanence and seriousness. In conversation, it can be replaced by expressions such as “for the rest of your life” or “all your life,” but “lifelong” is more concise and works well in formal writing. It is used in both British and American English.
adjectiveContinuing or lasting throughout a person's life; lasting for the remainder of one's life.
- Lasting throughout a person's life.
"Their lifelong friendship began when they were children."
"She is committed to lifelong learning and regularly studies new subjects."
"The award recognizes his lifelong contribution to the arts."
Lifelong turns “life” into a horizon: it describes the things that stay with you from one season to the next, decade after decade.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of lifelong
“Lifelong” is an English compound formed from “life” and “long.” “Life” continues Old English “lif,” while “long” continues Old English “lang,” meaning extended in time. The modern sense developed by applying the temporal sense of “long” to the whole span of a person's life. The related forms “alive,” “lively,” and “livelihood” share the same Germanic and English life-root.
How lifelong is actually used
Generally neutral to formal in register. It commonly describes friendships, commitments, careers, values, and interests, and can suggest that something will endure for the rest of a person's life.
Easily confused with lifelong
“Lifelong” means lasting throughout a person's life, whereas “living” can refer to being alive, to income, or to a style of life.