tri·​en·​ni·​al | \ (ˌ)trī-ˈe-nē-əl How to pronounce triennial (audio) \

Definition of triennial

1 : occurring or being done every three years the triennial convention
2 : consisting of or lasting for three years a triennial contract

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Other Words from triennial

triennial noun
triennially \ (ˌ)trī-​ˈe-​nē-​ə-​lē How to pronounce triennial (audio) \ adverb

Examples of triennial in a Sentence

Recent Examples on the Web Bidwell is in the planning stages for the area’s second triennial exhibition of contemporary art, Front International, due to take place in 2022. Joan Rusek, cleveland, 22 Mar. 2021 Japan is due to issue its triennial Basic Energy Plan with more specific targets for its fuel mix later this year. Josh Siegel, Washington Examiner, 11 Mar. 2021 El Museo del Barrio, the Manhattan museum that focuses on the art and culture of Puerto Ricans and Latin-American communities in the U.S., is offering its first triennial exhibition, set to open Saturday. Charles Passy, WSJ, 9 Mar. 2021 Unfortunately, the quilt guild also had to postpone its 2020 Vision of Quilting triennial quilt show. Carol Kovach, cleveland, 9 Mar. 2021 At the end of September, the California Energy Commission held a day-long workshop on indoor air quality and cooking to inform its triennial update to its building energy efficiency standards. Jonathan Mingle, Quartz, 4 Dec. 2020 Thornton Township’s previous triennial reassessment was in 2017. Daily Southtown Staff,, 3 Sep. 2020 More than 17,000 cast their votes online—a record for the triennial competition. Roger Catlin, Smithsonian Magazine, 1 June 2020 This year, the world’s coronavirus experts—and there still aren’t many—had to postpone their triennial conference in the Netherlands because SARS‑CoV‑2 made flying too risky. Ed Yong, The Atlantic, 3 Aug. 2020

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'triennial.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of triennial

1562, in the meaning defined at sense 1

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Time Traveler for triennial

Time Traveler

The first known use of triennial was in 1562

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Cite this Entry

“Triennial.” Dictionary, Merriam-Webster, Accessed 20 Jun. 2021.

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More from Merriam-Webster on triennial

Nglish: Translation of triennial for Spanish Speakers


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