septuagenarian

A person who is 70 years old or between the ages of 70 and 80.

Being 70 years old or between the ages of 70 and 80.

Of or relating to a septuagenarian.

A person seventy years of age, or between seventy and eighty.

A person who is seventy years of age; a septuagenary.

Being between the age of 70 and 79, inclusive. In one’s eighth decade.

Of or relating to a septuagenarian.

One who is between the age of 70 and 79, inclusive.

someone whose age is in the seventies