Definition of perpetuity in English:

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Pronunciation: /ˌpərpəˈt(y)o͞oədē/

noun (plural perpetuities)

1A bond or other security with no fixed maturity date.
Example sentences
  • This is also about the length of time that discount rates converge to perpetuities.
2 Law A restriction making an estate inalienable perpetually or for a period beyond certain limits fixed by law.
Example sentences
  • It is proposed that in future there should be a statutory rule on perpetuities that applies only to specified interests, which are essentially only those arising under wills and trusts.
  • The study found that simply changing a state's perpetuities laws wasn't enough to attract trust assets.
  • The trust, being created by statute, cannot be held invalid on the ground of perpetuity or on any other ground.
3The state or quality of lasting forever: he did not believe in the perpetuity of military rule
More example sentences
  • In short, the second type of scrutiny, which is very essential in the criticism of traditions, relates to the constancy and perpetuity of the chain of narrators.
  • The longevity and perpetuity, if not the excellence, of democracy has ensured that no individual or ideology has been able to paint this country in monochromatic colours.
  • I don't know that it's got much to do with the endocrine system, but you seem to have mastered the ‘integrity and perpetuity of life’.


in (or for) perpetuity

Forever: all the Bonapartes were banished from France in perpetuity
More example sentences
  • Sales of permanent water mean selling your water in perpetuity; sales of temporary water transfer water on an annual basis.
  • In 1625, he leaves prison banished in perpetuity, his health ruined and his spirit broken.
  • Or will the children believe they have achieved everything there is to achieve in sport, and seek to rest on their laurels in perpetuity?
forever, forevermore, permanently, for always, for good, perpetually, for ever and ever, for all time, until the end of time, until hell freezes over, eternally, for eternity, everlastingly
informal for keeps
archaic for aye


Late Middle English: from Old French perpetuite, from Latin perpetuitas, from perpetuus 'continuing throughout' (see perpetual).

Words that rhyme with perpetuity

acuity, ambiguity, annuity, assiduity, congruity, contiguity, continuity, exiguity, fatuity, fortuity, gratuity, ingenuity, perspicuity, promiscuity, suety, superfluity, tenuity, vacuity

For editors and proofreaders

Syllabification: per·pe·tu·i·ty

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