Definition, Meaning & Synonyms

sesquicentennial

noun
/ˌsɛs.kwɪ.sɛnˈtɛn.i.əl/
Definition
A celebration of the 150th anniversary of an event, often related to historical dates or significant milestones.
Examples
  • The city held a grand festival for its sesquicentennial, bringing together the community to celebrate.
  • Many schools organized special events to honor their sesquicentennial anniversaries.
Meaning
Referring to something that occurs every 150 years or the 150th anniversary itself.
Synonyms
  • 150th anniversary
  • centennial (for 100 years, though not exactly a synonym)
  • sesquicentury (less common)