enduring
adjective [ before noun ]
uk/ɪnˈdjʊərɪŋ/ usused to describe something that will last for a long time:
enduring popularity/strength/success This game has an enduring popularity.
enduring problems/difficulties
used to describe something that is good enough to be popular or successful for a long time:
an enduring brand/company Hoover™ is one of the most enduring brands of the twentieth century.