cacodemonic, demoniac(also demoniacal), demonic(also demonical), devilish, diabolical(or diabolic), fiendish, Luciferian, satanic

hellish, infernalbaleful, evil, sinistermalevolent, malicious, malignantheinous, monstrousblack, immoral, iniquitous, nefarious, vicious, vile, villainous, wickedbarbarous, cruel, ferocious, inhuman, savage

angelic(or angelical)

celestial, heavenlybeneficent, benevolent, benign, benignantgodly, holy, sainted, saintlyethical, good, moral, righteous, virtuous