Obstinately refusing to up or go.
(ux)
{{quote-journal
Insistently repetitive.
Indefinitely continuous.
Lasting past maturity without falling off.
(RQ:Schuster Hepaticae)
Of data or a structure: not transient or temporary, but remaining in existence after the termination of the program that creates it.
Describing a process that has a positive function
non-transient.
(l)
(inflection of)