twentysomething
noun[C]
MARKETINGinformaluk/ˈtwentiˌsʌmθɪŋ/usapersonbetween 20 and 29yearsold:
Many of today's twentysomethings wouldratherworkparttime.
twentysomething
adjective[before noun]
Many twentysomethingentrepreneursmaketheirfortuneson theinternet.
Compare
thirtysomething