[sek-sen-ee-uh l]


of or for six years.
occurring every six years.

Origin of sexennial

1640–50; < Latin sexenni(s) six years old (sex six + -enn-, combining form of annus year + -is adj. suffix) + -al1
Related formssex·en·ni·al·ly, adverb Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for sexennial

Historical Examples of sexennial

British Dictionary definitions for sexennial



occurring once every six years or over a period of six years


a sixth anniversary
Derived Formssexennially, adverb

Word Origin for sexennial

C17: from Latin sexennis of six years, from sex six + annus a year
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012