# quinquennal

> English word · Adjective

## Definitions
1. Synonym of quinquennial, of or related to a 5-year period.

## Etymology
From Latin quīnquennālis, from quīnquennis (“5-year”) + -ālis (“-al”), from quinque (“five”) + annus (“year”) + -is (“forming compound adjectives”).

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/quinquennal