decennial

[ dih-sen-ee-uh l ]
/ dɪˈsɛn i əl /

adjective

of or for ten years.
occurring every ten years.

noun

a decennial anniversary.
its celebration.

Origin of decennial

1650–60; < Latin decenni(um) a period of ten years ( decenn(is) decennary + -ium -ium) + -al1

OTHER WORDS FROM decennial

de·cen·ni·al·ly, adverb

Example sentences from the Web for decennial

British Dictionary definitions for decennial

decennial
/ (dɪˈsɛnɪəl) /

adjective

lasting for ten years
occurring every ten years

noun

a tenth anniversary or its celebration

Derived forms of decennial

decennially, adverb