What is another word for most long established?
Pronunciation: [mˈə͡ʊst lˈɒŋ ɪstˈablɪʃt] (IPA) 
Most long established refers to something that has been around for a considerable amount of time and has built a solid reputation. Synonyms for this phrase include long-standing, well-established, firmly established, deeply rooted, and time-honored. Each of these synonyms emphasizes the consistency and durability of the subject being described. Long-standing implies that something has been in existence for a lengthy amount of time. Well-established refers to something that has been widely recognized and accepted as important. Firmly established suggests that something has a secure position and is unlikely to change. Deeply rooted implies that something has become a fundamental part of a culture or tradition. Time-honored refers to something that has been respected and admired for a long time.
