persistent.
Obstinately refusing to give up or let go.
Meaning & usage
Obstinately refusing to give up or let go.
She has had a persistent cough for weeks.
Insistently repetitive.
There was a persistent knocking on the door.
Indefinitely continuous.
There have been persistent rumours for years.
Lasting past maturity without falling off.
Pine cones have persistent scales.
Of data or a data structure: not transient or temporary, but remaining in existence after the termination of the program that creates it.
Once written to a disk file, the data becomes persistent: it will still be there tomorrow when we run the next program.
Describing a fractal process that has a positive Brown function
non-transient.
Where this word comes from
From Latin persistentem, present participle of persistō (“continue steadfastly”). By surface analysis, persist + -ent.
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Definitions, grammatical labels, IPA, etymology and examples: Wiktionary contributors, extracted by Kaikki / Wiktextract. Adapted under CC BY-SA 4.0. Selected fields and authored examples are shown; third-party quotations and audio are omitted. See contributor history.
Last enriched 2026-09-10. Definitions are in English. Romanizations are shown when supplied by the source; syllable estimates are omitted for unsupported scripts.