Tricenarian vs. Thirtysomething — What's the Difference?

The highest rank and pay grade for prefectures in Ancient Rome

Thirtysomething is an American drama television series created by Edward Zwick and Marshall Herskovitz for United Artists Television (under MGM/UA Television) and aired on ABC from 1987 to 1991. It is about a group of baby boomers in their thirties who live in Philadelphia, Pennsylvania, and how they handle the lifestyle that dominated American culture during the 1980s given their involvement in the early 1970s counterculture as young adults.

A person in their thirties, a person aged between 30 and 39 years (inclusive).

A tricenarian: a person in their thirties, a person aged between 30 and 39 years (inclusive).

Between 30 and 39 years of age.

Between 30 and 39 in number.