Meaning & use

sesquicentennial

noun·Advanced

A 150th anniversary, or the celebration held to mark it.

See it in a sentence

The town organized a parade to celebrate its sesquicentennial in style.

The university published a special history book for its sesquicentennial.

A note on using this word

Sesquicentennial can also serve as an adjective, as in sesquicentennial celebration, describing anything related to a 150-year milestone.

Words with a similar meaning

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Choose a synonym to suit the sentence. Meanings can overlap without being identical.

Another way to use it

2. adjective

Relating to or marking a 150th anniversary.

The city planned a full year of sesquicentennial events leading up to its founding date.

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