# quadragenarian

> English word · Noun · IPA /ˌkwɑdɹəd͡ʒɪˈnɛɹiən/

## Definitions
1. Synonym of fortysomething: a person between 40 and 49 years old.

## Etymology
From Latin quadrāgēnārius (“containing 40”) + -an, either directly or via French quadragénaire, from Latin quadrāgēnus (“40 each”) + -ārius (“-ary”), from quadrāgintā (“four tens, forty”). Cognate with quadragenary, quadragenarious, and quadragene.

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