lifelong
adj.lasting for your whole life. You use this to describe a habit, a feeling, or a relationship that never ends.
adj.lasting or continuing through the entire duration of an individual's life. Often used to modify nouns representing personal commitments, interests, or relationships.
“She has a lifelong passion for classical music.”
“The two scientists maintained a lifelong friendship after meeting during their first year of university.”
“The university's mission statement emphasizes the importance of fostering a lifelong commitment to learning that extends far beyond the completion of a formal degree.”
Typically used as an attributive adjective, appearing before the noun it modifies.
“Aimed at people with lifelong and severe disabilities, NDIS was created to ensure disabled Australians had greater independence and an improved quality of life.”
“That choice – the cowardice of it – and its lifelong repercussions for her daughters may never have come fully to light were it not for the persistence of several journalists, Aviv included.”
From life + -long.
Etymology adapted from Wiktionary, available under CC BY-SA 4.0.