Definition of established adjective from the Oxford Advanced Learner's Dictionary
established
adjective
ɪˈstæblɪʃt ɪˈstæblɪʃt
[only before noun]
1respected or given official status because it has existed or been used for a long timeThey are an established company with a good reputation.This unit is now an established part of the course. see also well established2(of a person) well known and respected in a job, etc. that they have been doing for a long timean established actor3(of a Church or a religion) made official for a country
ɪˈstæblɪʃt 
ɪˈstæblɪʃt 
