triennial
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About Our Definitions: All forms of a word (noun, verb, etc.) are now displayed on one page.tri·en·ni·al
adjective \(ˌ)trī-ˈe-nē-əl\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>
— triennial noun
— tri·en·ni·al·ly \-nē-ə-lē\ adverb
See First Known Use of TRIENNIAL
1562
Rhymes with TRIENNIAL
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