quinquennial

/kwɪŋˈkwɛniəl/
noun
  1. A fifth anniversary or a celebration that occurs every five years.
    • The university celebrated its quinquennial with a grand ceremony.
    • They marked the quinquennial of the founding of the society.
    • The town's quinquennial festival attracts visitors from nearby regions.
adjective
  1. Occurring every five years.
    • Our club organizes a quinquennial reunion for former members.
    • The quinquennial census provides important data for government planning.
    • The company holds a quinquennial review of its business strategy.
  2. Lasting for five years.
    • The quinquennial contract was renewed after negotiations.
    • The quinquennial plan outlined the city's development goals through 2030.
    • They signed a quinquennial lease on the office space.
Antonyms
What does "quinquennial" mean? | whatsthatwordmean | whatsthatwordmean