Synonyms of perdurable

1 Syllable

old

2 Syllables

yearlong, stablest, long-term, diurnal, brass-bound, brassbound, brick-wall, stabler, pursuing, termless, chronic, lasting, longterm

3 Syllables

enduring, durable, perennial, persistent, perpetual, eternal, longstanding, diuturnal, immortal, shatterproof, perduring, long-lived, long-lasting, abiding, advancing, long-standing, maintaining, persisting, progressing, permanent, stabile, sustaining

4 Syllables

unbreakable, long-continued, sempiternal, all-embracing, everlasting, infrangible, nonbreakable, infinite, never-ceasing, persevering, phoenixlike

5 Syllables

supertemporal