perpetual

/pə'petjuəl/
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perpetual

The museum displays a perpetual motion machine as a scientific curiosity.

Definition
  1. Adjective:
    • Lasting forever; eternal: Describes something that continues indefinitely without end.
    • Continuing without interruption; constant: Describes something that is unceasing or persistent over a long period.
Usage and Examples
  • Meaning: Lasting forever:

    • They dreamt of finding the secret to perpetual youth. (They dreamt of finding the secret to eternal youth.)
    • The monument was built in perpetual memory of the heroes. (The monument was built in eternal memory of the heroes.)
  • Meaning: Constant, uninterrupted:

    • The perpetual noise from the construction site was unbearable. (The constant noise from the construction site was unbearable.)
    • She grew tired of his perpetual complaints. (She grew tired of his never-ending complaints.)
Advanced Usage
  • "Perpetual calendar": A calendar system designed to find the day of the week for any given date over a long range of years.

    • This watch features a perpetual calendar, so it automatically adjusts for leap years.
  • In a legal or formal context: Often used to describe rights, conditions, or positions that are intended to last indefinitely.

    • He was granted perpetual access to the archives.
Variants and Related Words
  • Perpetually (adverb): In a way that never ends or changes; constantly.

    • The machine runs perpetually.
  • Perpetuate (verb): To make something continue indefinitely.

    • The documentary aimed to perpetuate the memory of the event.
  • Perpetuity (noun): The state or quality of lasting forever.

    • The estate was held in perpetuity for the benefit of the public.
Synonyms
  • Eternal: Lasting or existing forever.
  • Everlasting: Lasting forever or for a very long time.
  • Ceaseless: Constant and unending.
  • Incessant: Continuing without pause or interruption.
  • Unremitting: Never relaxing or slackening; incessant.
Antonyms
  • Temporary: Lasting for only a limited period; not permanent.
  • Intermittent: Occurring at irregular intervals; not continuous or steady.
  • Finite: Having limits or bounds.
Related Idioms and Phrases
  • Perpetual motion: The concept of a machine that can continue to work forever without an energy source. Often used figuratively to describe relentless activity.

    • Trying to keep up with a toddler is like studying perpetual motion.
  • In perpetuity: For all future time; forever. A formal phrase often used in legal contexts.

    • The land was donated to the city in perpetuity.
perpetual

The museum displays a perpetual motion machine as a scientific curiosity.

Adjective
  1. uninterrupted in time and indefinitely long continuing
    • the ceaseless thunder of surf
    • in constant pain
    • night and day we live with the incessant noise of the city
    • the never-ending search for happiness
    • the perpetual struggle to maintain standards in a democracy
    • man's unceasing warfare with drought and isolation
    • unremitting demands of hunger
  2. continuing forever or indefinitely
    • the ageless themes of love and revenge
    • eternal truths
    • life everlasting
    • hell's perpetual fires
    • the unending bliss of heaven