thir‧ty‧some‧thing /ˈθɜːtiˌsʌmθɪŋ $ ˈθɜːr-/
noun [countable] informal someone between the age of 30 and 39:
a new magazine aimed at thirtysomethings—thirtysomething adjective:
a thirtysomething lawyer [TahlilGaran] Dictionary of Contemporary English ▲