As nouns the difference between decennial and decennia
is that decennial is the tenth anniversary of an event or happening while decennia is plural of lang=en.
As an adjective decennial
is occurring every ten years.
decennial
English
Noun
(
en noun)
The tenth anniversary of an event or happening.
Synonyms
*decaversary (qualifier), tin anniversary (informal)
Adjective
(-)
Occurring every ten years.
Anagrams
*
*
decennia
English
Noun
(head)
Anagrams
*
----