Englishsatanic
adjective
how could ordinary people have committed such satanic atrocities?:
diabolical, fiendish, devilish, demonic, demoniac, demoniacal, Mephistophelian;
hellish, infernal, accursed, wicked, evil, sinful, iniquitous, nefarious, vile, foul, abominable, unspeakable, loathsome, monstrous, atrocious, heinous, hideous, odious, horrible, horrifying, shocking, appalling, dreadful, awful, terrible, ghastly, abhorrent, despicable, damnable, villainous, depraved, perverted, ungodly, dark, immoral, amoral;
vicious, cruel, savage, brutish, bestial, barbaric, barbarous;
rare cacodemonic, egregious, flagitious, facinorous.
satanic Oxford Dictionary of English