seventies
adj1
From or evoking the 71st through 80th years of a century (chiefly the 1970s).
- I know the theme of the school dance is "The 1970s" but is covering the walls, floor, and ceiling with tie-dye too seventies?
- Among rock critics and journalists, there is an overwhelming bias to view the late sixties in a positive light and seventies music as an unfortunate decline into commercialism at the expense of musical authenticity.2011, John Covach, “The Hippie Aesthetic: Cultural Positioning and Musical Ambition in Early Progressive Rock”, in Mark Spicer, editor, Rock Music, Routledge, →DOI, →ISBN, page 65: