(n.) The evil and malicious disposition of Satan; a diabolical spirit.

Loki Nemesis Set Typhon aberrant abnormal abominable abomination accursed ado affliction agony amorality angry anguish annoyance anxiety apocalyptic arrant atrocious atrocity awful backsliding bad badness baleful bane baneful base baseness befoulment besetment bitchy black blamable blameworthy blight bodeful boding bother breach bugbear burden calamitous calamity can of worms carnality cataclysm catastrophe catastrophic catty corrupt corruption crime crime against humanity criminal criminality crooked crushing burden crying evil curse damage damaging damnable dark deadly deadly sin death debt defilement degeneracy degradation deleterious delinquency delinquent depraved depravity dereliction despiteful despoliation destruction destructive detriment detrimental deviant devilry deviltry diablerie diabolism difficult dire dirty disadvantage disagreeable disaster disastrous disease disgrace disgraceful disgusting dishonest dishonorable distasteful doomful dreadful dreary enormity error evil nature evil-minded evil-starred evildoing evilness execrable failure fateful fault felonious felony fetid flagitious flagitiousness flagrant foreboding foul foulness genocide ghastly gloomy great ado grievance grisly guilty act hard hardly the thing harm harmful hateful havoc headache heavy sin heinous heinousness hideous horrible horrid hurt hurtful ignominious ill ill-boding ill-fated ill-omened ill-starred illegal immoral immorality improper impropriety impurity inaccurate inappropriate inauspicious inconvenience incorrect indecorous indiscretion inexpedient inexpiable sin infamous infamy infection infelicitous inferior infliction iniquitous iniquity injurious injury injustice insidious invalid knavery knavish lapse lethal loathsome low lowering malefaction malefic maleficence maleficent malevolent malfeasance malign malignant malum matter menacing mephitic minor wrong mischief mischievous misconduct misdeed misdemeanor misery misfeasance misfortune monstrous moral delinquency mortal sin nasty naughty nefarious nefariousness nemesis nonfeasance not done not the thing noxious obliquity obscene of evil portent off-base off-color offense offensive ominous omission open wound out-of-line outrage pain peccability peccadillo peccancy peccant peck of troubles perfidious pernicious pest pestilence pestilential plague poison poisonous pollution portending portentous problem prodigality profligacy