long established

78 Moby Thesaurus words for "long established":
      acknowledged, admitted, chronic, confirmed, conventional,
      customary, deep-dyed, deep-engraven, deep-fixed, deep-grounded,
      deep-laid, deep-rooted, deep-seated, deep-set, deep-settled,
      dyed-in-the-wool, embedded, embossed, engrafted, engraved,
      entrenched, established, etched, fast, firmly established, fixed,
      folk, graven, hallowed, handed down, heroic, hoary, immemorial,
      implanted, impressed, imprinted, incorrigible, inculcated,
      indelibly impressed, infixed, ingrained, ingrown, instilled,
      inveterate, inwrought, irreversible, legendary, long-standing,
      mythological, of long standing, of the folk, old-line, on a rock,
      on bedrock, oral, prescriptive, received, recognized, rooted, set,
      settled, settled in habit, stabilized, thorough, time-honored,
      traditional, tried and true, true-blue, understood, unwritten,
      venerable, vested, well-established, well-founded, well-grounded,
      well-set, well-settled, worshipful