sesquicentenary

noun
ses·​qui·​cen·​te·​na·​ry | \ ˌse-skwi-sen-ˈte-nə-rē How to pronounce sesquicentenary (audio) , -ˈsen-tə-ˌner-ē, -sen-ˈtē-nə-rē\

Definition of sesquicentenary

First Known Use of sesquicentenary

1954, in the meaning defined above

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The first known use of sesquicentenary was in 1954

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formidable, illustrious, or eminent

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