adj ·Rare ·Advanced level

Definitions

Adjective

1. 1
   Synonym of tricennial, once every thirty years. not-comparable, uncommon

Synonyms

All synonyms

once every thirty yearstricennial

Etymology

From Latin triginta (“thirty”) + -ennial, combining adjectival form of annus (“year”). Compare the actual Latin term tricennium.

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