adj. showing the cunning or ingenuity or wickedness typical of a devil; "devilish schemes"; "the cold calculation and diabolic art of some statesmen"; "the diabolical expression on his face"; "a mephistophelian glint in his eye"

adj. having the nature of or resulting from malice; "malicious gossip"; "took malicious pleasure in...watching me wince"- Rudyard Kipling

adj. amusing in an odd or whimsical manner; deliberately waggish

adj. extremely wicked; "nefarious schemes"; "a villainous plot"; "a villainous band of thieves"

adj. bringing or deserving severe rebuke or censure; "a criminal waste of talent"; "a deplorable act of violence"; "adultery is as reprehensible for a husband as for a wife"

adj. shockingly brutal or cruel; "murder is an atrocious crime"; "a grievous offense against morality"; "a grievous crime"; "no excess was too monstrous for them to commit"

adj. stemming from evil characteristics or forces; wicked or dishonorable; "black deeds"; "a black lie"; "his black heart has concocted yet another black deed"; "Darth Vader of the dark side"; "a dark purpose"; "dark undercurrents of ethnic hostility"; "the scheme of some sinister intelligence bent on punishing him"-Thomas Hardy

adj. characterized by wickedness or immorality; "led a very bad life"

adj. "the scheme of some sinister intelligence bent on punishing him"-Thomas Hardy

adj. extremely evil or cruel; expressive of cruelty or befitting hell; "something demonic in him--something that could be cruel"; "fires lit up a diabolic scene"; "diabolical sorcerers under the influence of devils"; "a fiendish despot"; "hellish torture"; "infernal instruments of war"; "satanic cruelty"; "unholy grimaces"

adj. having evil thoughts or intentions