Great-granddad, or more seriously, a nonagenarian
Great-granddad, or more seriously, a nonagenarian
(nonagenarian: someone in their nineties - noun or adjective) It is harder for a nonagenarian to get a drivers license. The nonagenarian residents did not know how to use the computerized library.
You can refer to a person in their 70s as a septuagenarian.
A grown person is typically referred to as an adult.
A person who is retired is simply referred to as a retiree.
Great-granddad, or more seriously, a nonagenarian
It is 'nonagenrian' (Note the spelling). It is a person who is in their nineties by age.
A nonagenarian
A nanogenarian is a person between 90 and 99 years of age.
THE NINETIES - The Downsizing Decade.
Nightmare in the Nineties was created in 2001.
Alive in the Nineties was created in 2003.
The duration of The Lawless Nineties is 3300.0 seconds.
The duration of Belle of the Nineties is 1.25 hours.
The duration of The Nifty Nineties is 360.0 seconds.
The duration of The Naughty Nineties is 1.27 hours.
There are two primes in the nineties: 91 and 97