D defs.my
Entry 2 senses Webster, 1913

Retrospective

/rĕtˌ-rəs-pĕk'-tĭv/ · Re·tro·spec·tive · IPA /ˌɹɛt.ɹə(ʊ)ˈspɛk.tɪv/
01 a. Looking backward; contemplating things past; -- opposed to prospective; as, a retrospective view.
  1. 1.
    Looking backward; contemplating things past; -- opposed to prospective; as, a retrospective view.
    “The sage, with retrospective eye.” Pope.
  2. 2.
    Having reference to what is past; affecting things past; retroactive; as, a retrospective law.
    “Inflicting death by a retrospective enactment.” Macaulay.