WordNet (r) 3.0 (2006):

prelapsarian
    adj 1: of or relating to the time before the Fall of Adam and
           Eve

Moby Thesaurus II by Grady Ward, 1.0:

43 Moby Thesaurus words for "prelapsarian":
   angelic, ante-bellum, antediluvian, antemundane, before the Fall,
   before the Flood, before the war, blameless, childlike, clear,
   dovelike, faultless, guiltless, in the clear, incorrupt, innocent,
   lamblike, not guilty, offenseless, pre-Aryan, pre-Christian,
   pre-Renaissance, pre-Roman, preclassical, precultural, prehistoric,
   premillenarian, premundane, prerevolutionary, preromantic, prewar,
   pristine, protohistoric, reproachless, sans reproche, sinless,
   uncorrupted, undefiled, unfallen, unlapsed, untouched by evil,
   with clean hands, without reproach