[ret.ro.spec.tive] adj (1664) 1 a (1): of, relating to, or given to retrospection (2): based on memory "a ~ report" b: being a retrospective "a ~ exhibition"
2: affecting things past: retroactive -- ret.ro.spec.tive.ly adv
[2]retrospective n (1932): a generally comprehensive exhibition or performance of the work of an artist over a span of years