vigintennial
Synonym of vicennial, occurring every twenty yearsSynonym of vicennial, occurring every twenty years.
Meaning
1 senses(not comparable, rare)Synonym of vicennial, occurring every twenty years.
Origin
From viginti- (“twenty”) + -ennial (“yearly”), from Latin vīgintī (“twenty”) and -enniālisFrom viginti- (“twenty”) + -ennial (“yearly”), from Latin vīgintī (“twenty”) and -enniālis, from annus (“year”) + -is (“forming compound adjectives”) + -ālis (“-al: forming adjectives”).
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