THESAURUS
long standing
abiding, acknowledged, admitted, age-long, aged, ancient, antique, chronic, constant, continuing, conventional, customary, diuturnal, durable, enduring, established, evergreen, fixed, folk, hallowed, handed down, hardy, heroic, hoary, immemorial, immutable, intransient, inveterate, lasting, legendary, long-established, long-lasting, long-lived, long-term, longeval, longevous, macrobiotic, mythological, of long duration, of
long standing, of the folk, oral, perdurable, perduring, perennial, permanent, perpetual, persistent, persisting, prescriptive, received, recognized, remaining, rooted, sempervirent, stable, staying, steadfast, time-honored, tough, traditional, tried and true, true-blue, understood, unfading, unwritten, venerable, vital, worshipful
