septuagenarian

/ˌsɛptʃuədʒəˈnɛriən/
noun
  1. A person who is between 70 and 79 years old.
    • My grandmother, a lively septuagenarian, just started learning to paint.
    • The septuagenarian still ran marathons every year.
    • Many septuagenarians in the community volunteer at the local library.
adjective
  1. Being between 70 and 79 years old.
    • The club offers special discounts for septuagenarian members.
    • He joined a septuagenarian hiking group that explored national parks.
    • The septuagenarian couple celebrated their 50th wedding anniversary.
Synonyms
What does "septuagenarian" mean? | whatsthatwordmean | whatsthatwordmean