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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.

They repeatedly moved to dismiss the treason count, noting that conviction required a “breach of allegiance, and can be committed by him only who owes allegiance either perpetual or temporary.”

From Slate • Apr. 2, 2026

There's a perpetual conflict between entertainment and responsibility in reality TV shows, because conflict drives the story, said Hemmings, author of Familiar Strangers: The Psychology of our Relationship with Fame in the Age of Visibility.

From BBC • Mar. 21, 2026

Rather, they are making speculative bets with perpetual futures contracts.

From MarketWatch • Mar. 20, 2026

Trading volumes for perpetual futures on the exchange, which U.S. residents can’t access at the moment, have seen rapid growth.

From The Wall Street Journal • Mar. 18, 2026

Hamilton was totally judgmental with that perpetual smirk.

From "Challenger Deep" by Neal Shusterman

From Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.