septuagenarian

noun

sep·​tu·​a·​ge·​nar·​i·​an (ˌ)sep-ˌtü-ə-jə-ˈner-ē-ən 

-ˌtyü-, 

-ˌchü-

: a person whose age is in the seventies

septuagenarian adjective

Examples of septuagenarian in a Sentence

Recent Examples on the Web

Baby boomers’ good timing America’s septuagenarians were raised by parents who came of age during the Great Depression and learned the hard way the lessons of frugality and the importance of saving money. —Sasha Rogelberg, Fortune, 8 Dec. 2025

In a report published on Wednesday about Melissa, the Office of Civil Protection said that the fall of a tree had led to the death of a septuagenarian in the municipality of Marigot in the Southeast regional department. —Jacqueline Charles, Miami Herald, 23 Oct. 2025

Gerry Turner, the septuagenarian who starred on the premiere season of The Golden Bachelor, revealed in a new interview that he was diagnosed with a form of bone marrow cancer earlier this year, a diagnosis that contributed to his divorce from Theresa Nist, the winner of the reality dating series. —Daniel Kreps, Rolling Stone, 11 Dec. 2024

The President, Ronald Reagan, was a septuagenarian who made a show of chopping wood and riding horses. —Daniel Immerwahr, The New Yorker, 25 Nov. 2024

Word History

Etymology

Late Latin septuagenarius seventy years old, from Latin, of or containing seventy, from septuageni seventy each, from septuaginta

First Known Use

1744, in the meaning defined above

Rhymes for septuagenarian

• latitudinarian
• agrarian
• aquarian
• barbarian
• bavarian
• bulgarian
• cimmerian
• hungarian
• librarian
• ovarian
• riparian
• rotarian

Kids Definition

septuagenarian

noun

sep·​tu·​a·​ge·​nar·​i·​an (ˌ)sep-ˌt(y)ü-ə-jə-ˈner-ē-ən 

ˌsep-tə-ˌwaj-ə-

: a person who is 70 or more but less than 80 years old

septuagenarian adjective