Sin, agog with Satan, speaking with forked tongues, live evil is their palindrome, but how could ordinary people have committed such facinorous atrocities? diabolical, fiendish, devilish, demonic, demoniac, demoniacal, Mephistophelian; hellish, infernal, accursed, wicked, livid, 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, black, black-hearted, immoral, amoral; vicious, cruel, savage, brutish, *******, barbaric, barbarous; rare cacodemonic, egregious, flagitious.