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

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

The 1960s British teen idol Peter Noone is now a septuagenarian. —Christopher Arnott, Hartford Courant, 20 July 2024

The e-mail came from a Californian septuagenarian named Joel Stratte-McClure. —Lauren Collins, The New Yorker, 15 July 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

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