retrospective

adj

1. Of, relating to, or contemplating the past.

   “While the pictures of what precisely unfolded after Cissé looked to tread on Evans are not entirely conclusive, the Football Association will surely pore over them on Thursday before quite possibly using video evidence to impose lengthy retrospective bans stemming from an incident unseen by Anthony Taylor, the referee.”

   “Following a retrospective review of patient records, the parents of eligible patients were contacted by telephone to provide information about the study.”

2. Looking backwards.
3. Affecting or influencing past things; retroactive.

noun

1. An exhibition of works from an extended period of an artist's activity.