1.Definition: having committed unrighteous acts

Related Adjective(s):sinful, unholy

2.Definition: highly offensive; arousing aversion or disgust

"A wicked stench"

Related Adjective(s):disgustful, disgusting, distasteful, foul, loathly, loathsome, repellant, repellent, repelling, revolting, skanky, yucky

3.Definition: intensely or extremely bad or unpleasant in degree or quality

"Under wicked fire from the enemy's guns", "A wicked cough"

Related Adjective(s):severe, terrible

4.Definition: morally bad in principle or practice

5.Definition: naughtily or annoyingly playful

"A wicked prank"

Related Adjective(s):arch, impish, implike, mischievous, pixilated, prankish, puckish