Looking back on or dealing with past events or situations
(of an exhibition or compilation) Showing the development of an artist's work over a period of time
(of a statute or legal decision) Taking effect from a date in the past
means of or relating to the past or something that happened in the past.
describes something that relates to the past or to something that happened in the past.
looking back [adj RETROSPECTIVELY] / a generally comprehensive exhibition, compilation, or performance of the work of an artist over a span of years [n -S]