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

An 85-year-old man and a second unidentified victim were removed from the burning apartment and rushed to Harlem Hospital, where the octogenarian died. —Thomas Tracy, New York Daily News, 28 June 2025

Director: Cody Sheehy The Hook: Just your typical story about an octogenarian and his favorite manta ray. —Rebecca Rubin, Variety, 4 June 2025

In February, the octogenarian shared a video on his Instagram of the musician performing in a record shop 2016. —Marina Watts, People.com, 11 June 2025

Ralph Fiennes’s concierge is the director’s natural surrogate, the behind-the-scenes guy who tends to every detail of the hotel’s operation while going to extraordinary lengths to please the guests, even if that means bedding octogenarians. —Scott Tobias, Vulture, 7 June 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