Definitions

eternity

[ih-tur-ni-tee] / ɪˈtɜr nɪ ti /

NOUN

forever

Synonyms

STRONG

aeon afterlife age ages endlessness everlastingness future immortality imperishability infiniteness infinitude infinity perpetuity timelessness

WEAK

all time blue moon dog's age endless time forever and a day kingdom come other world time without end wild blue yonder world without end

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Or is space-time — the manifold of all the events that happen throughout eternity — merely something that occurs?

From Science Daily • Jun. 8, 2026

His mother planned every detail of those very first, life-changing flights with her son in mind, and that gift is one formative enough to last an eternity.

From Salon • Jun. 2, 2026

After what seemed like an eternity of tortured reflection, Nakamura stumbled right into Sindarov’s trap.

From The Wall Street Journal • Apr. 6, 2026

If a week is a long time in politics, a day feels like an eternity in today’s financial markets.

From Barron's • Mar. 19, 2026

We'd been phone buddies the previous summer, and ten days of spring break would feel like an eternity away from him.

From "Americanized" by Sara Saedi

Vocabulary lists containing eternity

"To His Coy Mistress" by Andrew Marvell

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"Because I Could Not Stop for Death" by Emily Dickinson

Interested in learning more words like this one? Our team at Vocabulary.com has got you covered! You can review flashcards, quiz yourself, practice spelling, and more – and it's all completely free to use!

Brown Girl Dreaming

Want to remember this word for good? Start your learning journey today with our library of interactive, themed word lists built by the experts at Vocabulary.com – we'll help you make the most of your study time!