<p><strong>Adjective</strong></p><ul><li>without beginning or end; lasting forever; always existing (temporal): eternal life.</li><li><strong>Synonyms:</strong> permanent</li><li><strong>Antonyms:</strong> transitory</li><li>perpetual; ceaseless; endless: eternal quarreling; eternal chatter.</li><li>enduring; immutable: eternal principles.</li><li><strong>Synonyms:</strong> indestructible, imperishable, undying, deathless, immortal, timeless</li><li><strong>Antonyms:</strong> mutable</li><li>Metaphysics: existing outside all relations of time; not subject to change.</li></ul><p><strong>Noun</strong></p><ul><li>something that is eternal.</li><li>the Eternal: God.</li></ul>