\Re`tro*spec"tive\, a. [Cf. F. r['e]trospectif.] 1. Looking backward; contemplating things past; -- opposed to prospective; as, a retrospective view. The sage, with retrospective eye. --Pope. 2. Having reference to what is past; affecting things past; retroactive; as, a retrospective law. Inflicting death by a retrospective enactment. --Macaulay.