The meaning of ETERNAL is having infinite duration : everlasting. How to use eternal in a sentence.

Incomprehensible and invisible, eternal and unbegotten, he was throughout endless ages in serenity and quiescence.

In the film, the Eternals are immortal beings who emerge from hiding after thousands of years to protect Earth from their ancient counterparts, the Deviants.

If you describe something as eternal, you mean that it seems to last for ever, often because you think it is boring or annoying. In the background was that eternal hum.

Definition of eternal adjective in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.

Jan 20, 2026 · Adjective eternal (comparative more eternal, superlative most eternal) Lasting forever; unending. Synonyms: agelong, endless, everlasting, permanent, sempiternal, unending; see also …

There are 16 meanings listed in OED's entry for the word eternal, one of which is labelled obsolete. See ‘Meaning & use’ for definitions, usage, and quotation evidence.

Eternal, endless, everlasting, perpetual imply lasting or going on without ceasing. That which is eternal is, by its nature, without beginning or end: God, the eternal Father.

Eternal definition: Being without beginning or end.

"eternal and unchanging, perpetual, everlasting, having no end," early 15c., from Old French sempiternel "eternal, everlasting" (13c.) or directly from Medieval Latin sempiternalis, from Latin sempiternus …