trigintennial

Fetched 2026-10-26 (cache).

Synonyms: tricentennial

Antonyms: tricentennial

Related words from Datamuse; suggestions, not definitions.

Adjective

1. {{lb|en|uncommon}} {{synonym of|en|tricennial}}, [[once]] [[every]] [[thirty]] [[year]]s.

Source: Wiktionary · CC BY-SA 4.0 (Wiktionary dump) · cached copy, not a rewrite.