Vigintennial

adj

adj ·Rare ·Advanced level

Definitions

Adjective
  1. 1
    Synonym of vicennial, occurring every twenty years. not-comparable, rare

Synonyms

All synonyms
occurring every twenty yearsvicennial

Etymology

From 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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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.