thirtysomethingthir‧ty‧some‧thing /ˈθɜːtiˌsʌmθɪŋ $ ˈθɜːr-/ noun [countable] 
informal someone between the age of 30 and 39: 
a new magazine aimed at thirtysomethings—thirtysomething adjective
informal someone between the age of 30 and 39: a new magazine aimed at thirtysomethings—thirtysomething adjective- interdependence
- interdependent
- interdependently
- interdict
- interdiction
- interdisciplinary
- interest
- interested
- interestedly
- interest-free
- interest group
- interesting
- interestingly
- interest rate
- interface
- interfaith
- interfere
- interference
- interferon
- intergalactic
- intergenerational
- intergovernmental
- interim
- interior
- interior decorating