Определение well-established в Английский Язык Английский Язык словарь
If you say that something is well-established, you mean that it has been in existence for quite a long time and is successful. The University has a well-established tradition of welcoming postgraduate students from overseas. well-established companies such as Compaq and Olivetti. something that is well-established has existed for a long time and is respected or trusted by people