Meanings
adjectiveundecennial (not comparable)
- not comparableOccurring or observed every eleventh year.
undecennial festival
1 more example
undecennial magnetic period
Cite this entry
APA
undecennial. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/undecennial
MLA
“undecennial.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/undecennial. Accessed November 3, 2026.
Chicago
WatkinsX Dictionary, s.v. “undecennial,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/undecennial.
Source: undecennial on Wiktionary, CC BY-SA 4.0.