Results

Definition of eternal : 1. Continued without intermission; perpetual; ceaseless; constant.
2. Exceedingly great or bad; - used as a strong intensive.
3. Existing at all times without change; immutable.
4. One of the appellations of God.
5. That which is endless and immortal.
6. Without beginning or end of existence; always existing.
7. Without end of existence or duration; everlasting; endless; immortal.

Synonyms:

thoroughgoing, ever-living, undying, indefinite, unremitting, deathless, unbroken, around-the-clock, gross, complete, eterne, unconquerable, temporary, without end, relentless, arrant, continuous, never-failing, stark, eonian, unending, ageless, unyielding, double-dyed, persistent, pure, aeonian, limited, sodding, unfailing, utter, nonstop, changeable, unfading, staring, forever, imperishable, inconstant, continue, indestructible, sempiternal, dateless, change, indomitable, consummate, round-the-clock, world without end, finite, fadeless, perfect, amaranthine, ongoing, unadulterated, always, never-ending

lifetime, durable, long-life, livelong, long, perennial, lengthy, lifelong, prolonged

immortal, constant, permanent, incessant, lasting, unceasing, continual, enduring, uninterrupted

incalculable, unlimited, limitless, infinite, termless, everlasting, bottomless, innumerable, illimitable, boundless, interminable, countless, immeasurable, ceaseless, perpetual, timeless, unbounded, endless, numberless, inexhaustible, immemorial

Usage examples:

• " Well, I mean to hear something now, Mr. Gleason, or, by the eternal! - "Marion's Faith.", Charles King.
• If you believe in me, you already have eternal life. - "Men Called Him Master", Elwyn Allen Smith.
• And to eternal flame? - "Porzia", Cale Young Rice.