(often used before a noun) a cultural movement of the late 1980s, characterized by popular enthusiasm for alternative beliefs and disciplines, including astrology, mysticism, meditation, and holistic medicine

So off to the therapist, the new-age aquarian bubble bath and Christianity — Marxism Today, 1990

a gentle dreamy melodic style of popular music typical of the late 1980s, using synthesizers and acoustic instruments and incorporating sounds from nature