Decennial
adj, noun
adj, noun ·4 syllables ·Uncommon ·Advanced level
Definitions
Noun
- 1 Synonym of decade, a ten-year period.
- 2 A tenth anniversary, particularly
- 3 A tenth anniversary, particularly; Synonym of decennalia, the festival and religious ritual held in the 10th year of a Roman emperor's reign. historical
"Roman coins mentioning the vota publica for Macrinus are RIC IV.1 5–13; on vota publica for the decennials and vicennials of emperors in the 2nd and 3rd c. ad, see Chastagnol 1984."
Adjective
- 1 Occurring every ten years. not-comparable
- 2 Of or related to a ten-year period, as a term of office. not-comparable
Example
More examples"Roman coins mentioning the vota publica for Macrinus are RIC IV.1 5–13; on vota publica for the decennials and vicennials of emperors in the 2nd and 3rd c. ad, see Chastagnol 1984."
Etymology
From Latin decennialis, from decennium (“10-year period”) + -ālis, from decennis (“10-year”) + -ium (“-ium”, suffix forming abstract nouns), from decem (“ten”) + annus (“year”) + -is (suffix forming compound adjectives).
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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.