adj, noun ·Rare ·Advanced level

Definitions

Noun

1. 1
   The 300th anniversary of an event or happening.

Adjective

1. 1
   Occurring every three hundred (300) years. not-comparable

Adjective

1. 1
   of or relating to or completing a period of 300 years wordnet

Synonyms

All synonyms

tercentenarytricentenarytricentenarytricentenary

Etymology

By surface analysis, tri- + centennial and tri- + cent- + -ennial.

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