Eternal Definition

ĭ-tûrnəl

adjective

Without beginning or end; existing through all time; everlasting.

Webster's New World

Continuing without interruption; perpetual.

Earned my eternal gratitude.

American Heritage

Of eternity.

Webster's New World

Seemingly endless; interminable.

Eternal waiting at the airport.

American Heritage

Forever the same; always true or valid; unchanging.

The eternal verities.

Webster's New World

Synonyms:

Antonyms:

noun

Something timeless, uninterrupted, or endless.

American Heritage

God. Used with the.

American Heritage

Synonyms:

Idioms, Phrasal Verbs Related to Eternal

Middle English from Old French from Late Latin aeternālis from Latin aeternus aiw- in Indo-European roots

From American Heritage Dictionary of the English Language, 5th Edition
From Old French eternal, from Late Latin aeternalis, from Latin aeternus (“eternal”), from aevum (“age”).

From Wiktionary