thirtysomething

adjective

thir·​ty·​some·​thing ˈthər-tē-ˌsəm(p)-thiŋ 

: having an age of 30 to 39 years old

thirtysomething parents

also : of or relating to people in their thirties

Just the usual thirtysomething decor—Persian rug, book-shelves, abstract paintings, glass coffee table, … and a few exotic trinkets picked up on foreign junkets.

—Marly Swick

thirtysomething noun

Examples of thirtysomething in a Sentence

Recent Examples on the Web

Today that someone is David Kolen, a thirtysomething labor negotiator from Chicago at Eaux Claires with two friends. — Steven Zeitchik, HollywoodReporter, 28 July 2026

However, since reaching proper adulthood at the end of the last decade, the Menzingers have struggled to adapt their storytelling to their thirtysomething selves. — Eli Enis, Pitchfork, 22 July 2026

Mary, our thirtysomething narrator, has recently boomeranged back to her hometown (York) after experiencing a break with reality that may or may not be psychotic. — Emily Temple, Literary Hub, 26 May 2026

Families, younger travelers, and those seeking immersive cultural experiences can choose from specialized options like family tours, 18-to-thirtysomething trips, and Local Living tours that engage with daily life abroad. — Josh Roberts, USA Today, 10 Jan. 2026

Word History

First Known Use

1987, in the meaning defined above

Rhymes for thirtysomething

• something