long-established

• long established

long-established (comparative more long-established or longer-established, superlative most long-established or longest-established)

1. That has been in existence for a long time.

   Synonym: well-established

   • 1776, Adam Smith, An Inquiry Into the Nature and Causes of the Wealth of Nations:

     First, the employments must be well known and long established in the neighbourhood ;

   • 1870, George Herbert, “The Primitive Church—Where to Find it”, in The Church. Sermons Preached on Sunday Afternoons in the Cathedral of Limerick‎, page 116:

     The age in which we live is remarkable for searching out, and sifting to the bottom, the most long-established opinions which have come down to us.

   • 1960 February, R. C. Riley, “The London-Birmingham services - Past, Present and Future”, in Trains Illustrated, page 102:

     Some long-established trains have disappeared from the new timetables, including the through trains between Birkenhead and Margate, and York and Bournemouth. These will be restored in May, [...].

   • 1995, Jeremy Waddington, The Politics of Bargaining:

     During Wave I formations tended to merge with their contemporaries, whereas during Wave II acquisition by longer-established unions was the predominant pattern.