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Definition of thirtysomething

thirtysomething

/ˈθɝː.t̬iˌsʌm.θɪŋ/
thir · ty · some · thing
Plural:thirtysomethings
•
Adjective:thirtysomething
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thirtysomething Lexical Profile

thirtysomething Game Scores & Validity

• noun

1

A person whose age is between thirty and thirty-nine years old.

Example

"Many urban thirtysomethings are delaying buying a first home due to rising housing costs."

2

An unspecified number or age between thirty and forty.

Example

"I think she is thirtysomething, though she has never mentioned her exact birth year."

• adjective

1

Being between thirty and thirty-nine years old, or characteristic of people in this age group.

Example

"The novel explores the anxieties of a group of thirtysomething friends living in the city."

• Nearby Words

thirty
thirtyfold
thirtyish
thirtysomething
this
thisaway
thistle

Word Origin & Etymology

Coined in the late 20th century as a compound of 'thirty' and 'something', popularized by the American television drama series 'thirtysomething' (1987–1991).

Cite this Entry

Wordmom. (2026). Definition of Thirtysomething. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/thirtysomething
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