alternateen UK /ɒlˈtɜː(ɹ).nəˌtin/US /ɔlˈtɝ.nəˌtin/ noun1 •A teenager with an interest in alternative rock and the associated youth counterculture, particularly with visible markers such as piercings.Even if you’re a cynical, pierced, and multiply-tattooed alterna-teen, you won’t have a dry eye after this one. — 2003 formsalternateens