Definitions

perpetual

[per-pech-oo-uhl] / pərˈpɛtʃ u əl /

ADJECTIVE

continual, lasting

Synonyms

STRONGEST

ceaseless constant continued continuous endless enduring eternal incessant infinite interminable never-ending perennial permanent persistent recurring unceasing unending

WEAK

abiding everlasting going on immortal imperishable intermittent never-ceasing perdurable recurrent reoccurring repeated repeating repetitious returning sempiternal unchanging undying unfailing uninterrupted unremitting without end

Antonyms

STRONGEST

bounded ceasing changeable changing completed discontinuous ending ephemeral finished finite halting intermittent interrupted irregular limited stopping temporary terminable transient

WEAK

brief fleeting momentary

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.

On Tuesday morning, SpaceX shares were trading at about $157 on Hyperliquid External link, a cryptocurrency platform for trading perpetual futures—or futures that never expire.

From Barron's • Jun. 9, 2026

They gave the U.S. a perpetual concession for the cemetery where most of those fallen Americans are buried.

From Salon • Jun. 9, 2026

In recent years, some U.S. firms have supplied “perpetual-style” products that haven’t really caught on, begging the question of whether demand for a true perpetual futures product would grow rapidly.

From Barron's • Jun. 8, 2026

Escorted by actor and perpetual emcee Bob Hope, Sam the Eagle descended the L.A.

From Los Angeles Times • Jun. 6, 2026

The corners of the house splinter off at multiple places and give the cabin a perpetual slant.

From "Kwame Crashes the Underworld" by Craig Kofi Farmer

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