Synonyms of self-perpetuating

2 Syllables
countless, undying, untold, deathless, constant, boundless, endless
3 Syllables
enduring, ceaseless, perpetual, eternal, unbounded, continual, unbroken, overlong, immortal, limitless, numberless, incessant, continuous, unending
4 Syllables
monotonous, unlimited, never-ending, measureless, everlasting, infinite, undivided
5 Syllables
unfathomable, amaranthine, unsurpassable, immeasurable, incalculable, interminable, illimitable, multitudinous, uninterrupted
6 Syllables
indeterminate