eternal

adj

1. infinite, timeless, always existing; Archaic. eterne; unbegotten, self-originated, self-existent, self-active; absolute, almighty, boundless, illimitable.

2. perpetual, endless, unending, never-ending, interminable, Sisyphean; ceaseless, incessant, unceasing, nonstop, constant, uninterrupted, continual, continuous, unbroken; unremitting, unintermitting, relentless, persistent; recurrent, repeated, frequent, habitual.

3. enduring, lasting, abiding, everlasting, Literary. sempiternal, aeonian, amaranthine, perennial; immutable, constant, unwavering, unfaltering, undiminished; invariable, fixed, durable, stable, steady, permanent.

4.Metaphys. unchangeable, changeless, unchanging, immutable, imperishable, perdurable, indestructible; immortal, undying, never-dying, ever-living, deathless.