WordNet sense 1 (characterized by iniquity; wicked because it is believed to be a sin):

iniquitous, ungodly

WordNet sense 2 (morally bad in principle or practice):

wicked, wicked

WordNet sense 3 (having committed unrighteous acts):

unholy

WordNet sense 4 (far more than usual or expected):

extraordinary, over-the-top

WordNet sense 5 (not within reasonable limits):

immoderate