old-established

 Longman Dictionary of Contemporary English 5++朗文当代英语 5++LDOCE 5++朗文 5++ˌold-esˈtablished adjective [only before noun]  having existed, been in business etc for a long time 早已存在的；经营多年的 old-established merchant banks 历史悠久的商业银行

Examples from the Corpus

old-established• Born in 1882, Roosevelt came from an old-established and well-to-do landowning family of upstate New York.• But that is no longer possible in the historical or old-established large nation- states.• In the upland region an old-established pastoral economy and the local industry that supported it was in sharp decline.• In the foreground can be seen the old-established straw-plait basket shop.• Others had grown up around old-established trading posts, such as those on the Gold Coast or in Sierra Leone.

ˌold-esˈtablished adjectiveChineseSyllable  

etc for existed, business a in Corpus been having

old-established
ˌold-esˈtablished adjective [only before noun]
having existed, been in business etc for a long time:
    old-established merchant banks

old-establishedBrE /ˌəʊld ɪˈstæblɪʃt/ 🔊NAmE /ˌoʊld ɪˈstæblɪʃt/ 🔊 adjective [only before noun] that has existed for a long time 年代久远的；古老的；悠久的；固有的