octogenarian

noun

oc·​to·​ge·​nar·​i·​an ˌäk-tə-jə-ˈner-ē-ən 

: a person whose age is in the eighties

The octogenarian uses a cane for walking.

octogenarian adjective

Examples of octogenarian in a Sentence

Recent Examples on the Web

The octogenarian hasn’t seemed to catch the theater bug yet. —Jason P. Frank, Vulture, 25 Feb. 2025

This past June 27, the trim octogenarian took the spotlight. —Graydon Carter, airmail.news, 6 July 2024

Among the few diners: an octogenarian and her descendants, a stressed-looking woman on a laptop. —Sheila Yasmin Marikar, The New Yorker, 20 Jan. 2025

Lawyers representing children, and an octogenarian who has spent the Florida revival of his law career as a Legal Aid attorney are among the South Florida attorneys honored during the 2025 Florida Bar President’s Pro Bono Service Awards. —David J. Neal, Miami Herald, 28 Jan. 2025

Word History

Etymology

Latin octogenarius containing eighty, from octogeni eighty each, from octoginta eighty, from octo eight + -ginta (akin to viginti twenty) — more at vigesimal

First Known Use

1815, in the meaning defined above

Rhymes for octogenarian

• authoritarian
• communitarian
• disciplinarian
• egalitarian
• equalitarian
• humanitarian
• majoritarian
• parliamentarian
• radiolarian
• totalitarian
• utilitarian
• agrarian

Kids Definition

octogenarian

noun

oc·​to·​ge·​nar·​i·​an ˌäk-tə-jə-ˈner-ē-ən 

: a person whose age is between 80 and 89

Medical Definition

octogenarian

noun

oc·​to·​ge·​nar·​i·​an ˌäk-tə-jə-ˈner-ē-ən 

: a person whose age is in the eighties

octogenarian adjective