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noun sep·tu·a·ge·nar·i·an \(ˌ)sep-ˌtü-ə-jə-ˈner-ē-ən, -ˌtyü-, -ˌchü-\

Simple Definition of septuagenarian

  • : a person who is between 70 and 79 years old

Source: Merriam-Webster's Learner's Dictionary

Full Definition of septuagenarian

  1. :  a person whose age is in the seventies



Origin and Etymology of septuagenarian

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

First Known Use: 1805

Rhymes with septuagenarian

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