pentennial
Synonym of quinquennial: occurring every five yearsSynonym of quinquennial: occurring every five years.
Meaning
1 senses(not comparable, rare)Synonym of quinquennial: occurring every five years.
The family had plans to attend the pentennial reunion.
Origin
From Ancient Greek πέντε (pénte, “five”) + Latin annus (“year”) + -ial.From Ancient Greek πέντε (pénte, “five”) + Latin annus (“year”) + -ial.
Wiktionary, CC BY-SA 4.0 · source
Dictionary text adapted from Wiktionary (Wiktionary contributors, CC BY-SA 4.0) and Open English WordNet / Princeton WordNet (CC BY 4.0, WordNet License); shared under CC BY-SA 4.0. Example sentences and recordings are credited where they appear.