estbd.

Adjective

established (comparative more established, superlative most established)

1. Having been in existence for a long time and therefore recognized and generally accepted.
   • Near-synonyms: long-standing, accomplished (of faits accomplis), in place

   Synonyms:

   long-standing, accomplished, in place

2. Having been successful for a long time and therefore recognized and generally respected.
   • Near-synonym: accomplished

   Synonyms:

   accomplished

3. Of a religion, church etc.: formally recognized by a state as being official within that area.
   • Anglicanism did manage to strengthen its position in the southern English American colonies after Charles II's restoration (even in cosmopolitan New York), gaining established status in six out of the eventual thirteen.2009, Diarmaid MacCulloch, A History of Christianity, Penguin, published 2010, page 731
4. Of any social or economic entity: part of the establishment (“groups with socioeconomic power”).
5. (Model, procedure, disease) Explicitly defined, described or recognized as a reference.