alternarock UK /ɒlˈtɜː(ɹ).nəˌɹɒk/US /ɔlˈtɝ.nəˌɹɑk/ noun1 •Alternative rock music.While the album admirably breaks the downward stylistic spiral that marked the latter band's career, it's so crammed with alternarock stars it sounds more like a tribute to Watt than a solo debut. — 1995