- of or for ten years.
- occurring every ten years.
- a decennial anniversary.
- its celebration.
Origin of decennial
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for decennial
This year marks the decennial of the movement in the United Kingdom.
Period of the decennial archons, seven of whom succeeded between 752—682.A Manual of Ancient History
A. H. L. (Arnold Hermann Ludwig) Heeren
Are you prepared to have, after every decennial census, a new distribution of members among electoral districts?The Miscellaneous Writings and Speeches of Lord Macaulay, Vol. 4 (of 4)
Thomas Babington Macaulay
We also observe that the percentage of decennial increase gradually decreased from 1234 per cent.Japan and the California Problem
The threat of the Belgian deputies to oppose the decennial budget was now carried out.History of Holland
- lasting for ten years
- occurring every ten years
- a tenth anniversary or its celebration
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
Word Origin and History for decennial
Online Etymology Dictionary, © 2010 Douglas Harper