intransient

CIDE DICTIONARY

intransient, a. 

 Not transient; remaining; permanent.  Killingbeck.  [1913 Webster]

THESAURUS

intransient

abiding, age-long, aged, ancient, antique, chronic, constant, continuing, diuturnal, durable, enduring, evergreen, hardy, immutable, inveterate, lasting, long-lasting, long-lived, long-standing, long-term, longeval, longevous, macrobiotic, of long duration, of long standing, perdurable, perduring, perennial, permanent, perpetual, persistent, persisting, remaining, sempervirent, stable, staying, steadfast, tough, unfading, vital

ROGET THESAURUS

intransient

Diuturnity

N diuturnity, a long time, a length of time, an age, a century, an eternity, slowness, perpetuity, blue moon, coon's age, dog's age, durableness, durability, persistence, endlessness, lastingness, continuance, standing, permanence, survival, survivance, longevity, distance of time, protraction of time, prolongation of time, extension of time, delay, durable, lasting, of long duration, of long-standing, permanent, endless, chronic, long-standing, intransient, intransitive, intransmutable, persistent, lifelong, livelong, longeval, long-lived, macrobiotic, diuturnal, evergreen, perennial, sempervirent, sempervirid, unrelenting, unintermitting, unremitting, perpetual, lingering, protracted, prolonged, spun out, long-pending, long-winded, slow, long, for a long time, for an age, for ages, for ever so long, for many a long day, long ago, longo intervallo, all the day long, all the year round, the livelong day, as the day is long, morning noon and night, hour after hour, day after day, for good, permanently.