Thesaurus

abhorrent, aggravated, atrocious, bad, base, big, black, blood-and-guts, charnel, cold, coltish, concentrated, condemnable, consuming, corruptive, creepy, criminal, dark, debauched, deep, degenerate, degraded, demonic, deplorable, despicable, detestable, devilish, diabolic, diabolical, disgraceful, disgustful, disgusting, dishonorable, dishonourable, dissipated, dissolute, distasteful, elfin, elfish, elvish, evil, evil-minded, exquisite, extreme, fast, fiendish, fierce, flagitious, foul, frisky, frolicky, frolicsome, ghastly, ghoulish, godless, grievous, guilty, hateful, heavy, heinous, hellish, hideous, horrid, horrific, immoderate, immoral, impious, impish, implike, improper, infernal, iniquitous, intemperate, intense, intensified, intensive, irreclaimable, irredeemable, irreligious, irreverent, keen, kittenish, libertine, loathly, loathsome, main, mephistophelean, mephistophelian, mischievous, misguided, mistaken, mocking, monstrous, morbid, nefarious, objectionable, obnoxious, obscene, offensive, outrageous, overwhelming, peccable, peccant, perversive, pestiferous, pixilated, playful, prankish, profane, profligate, profound, puckish, quizzical, raging, rank, rascally, repellant, repellent, repelling, reprehensible, repugnant, repulsive, revolting, riotous, roguish, rollicking, satanic, scandalous, screaming, scrimy, scrofulous, sepulchral, severe, shameful, shocking, sinful, sinister, skanky, slimy, smart, sportive, strong, tearing, teasing, terrible, terrific, thick, trigger-happy, ugly, unabated, unchaste, unethical, ungodly, unholy, unjust, unpalatable, unpleasant, unredeemable, unreformable, unrighteous, unworthy, utmost, uttermost, vehement, verminous, vicious, vile, villainous, violent, wicked, wild, worthless, wretched, wrong, yucky

wicked is a ADJ.