Synonyms of termless

2 Syllables
undying, always, deathless, boundless, constant, lasting
3 Syllables
enduring, ceaseless, perennial, persistent, perpetual, continued, dateless, eternal, timeless, continual, unbroken, immortal, unfading, abiding, forever, relentless, unending, permanent, ageless, incessant, unceasing, continuous
4 Syllables
immutable, unremitting, sempiternal, never-ending, everlasting, infinite, perdurable, immemorial
5 Syllables
amaranthine, illimitable, interminable, imperishable, indestructible, indefinite, uninterrupted