(a.) Characteristic of the devil; diabolical\.

Draconian Mephistophelian Tartarean abominable accursed animal anthropophagous appalling atrocious awful bad barbaric barbarous base beastly bestial bloodthirsty bloody bloody-minded brutal brutalized brute brutish cannibalistic corrupt cruel cruel-hearted cursed damnable demoniac demoniacal demonic demonish demonlike depraved devil-like devilish diabolical dreadful evil execrable fell feral ferocious fiendish fiendlike fierce flagitious foul ghoulish heinous hellborn hellish hideous horrible horrid ill impious infernal inhuman inhumane iniquitous maleficent malevolent malicious malign monstrous murderous odious ogreish ruthless sadistic sanguinary sanguineous satanic savage serpentine sharkish sinful sinister slavering subhuman terrible truculent unchristian uncivilized ungodly unhallowed unhuman vicious vile wicked wolfish