Synonyms and related words :
Adamic, backsliding, carnal, erring, fallen, fleshly, frail, godless, impious, impure, infirm, irreligious, lapsed, of easy virtue, peccable, postlapsarian, prodigal, recidivist, recidivistic, sinful, un-Christly, unangelic, unchaste, unchristian, unclean, ungodly, ungood, unholy, unrighteous, unvirtuous, virtueless, wanton, wayward, weak, wicked