Same word as unoffending:

above suspicion, clean, clean-handed, clear, crimeless, exemplary, faultless, good, guilt-free, guiltless, immaculate, impeccable, in the clear, inculpable, innocent, irreprehensible, irreproachable, not guilty, perfect, pure, righteous, stainless, unblemished, unimpeachable, unoffending, unspotted, unsullied, untarnished, upright, virtuous