25B6; adjective WELL ESTABLISHED, long-established; time-honoured, traditional, age-old; abiding, enduring, long-lived, surviving, persistent, prevailing, perennial, deep-rooted, long-term, confirmed.
new, recent.
LONG-STANDING
Meaning of LONG-STANDING in English
Concise Oxford thesaurus English vocabulary. Краткий оксфордский словарь английского языка тезаурус. 2012