Definition of "Wicked" :

adjective: intensely or extremely bad or unpleasant in degree or quality

"Under wicked fire from the enemy's guns."

adjective: highly offensive; arousing aversion or disgust

"A wicked stench."

adjective: having committed unrighteous acts

adjective: naughtily or annoyingly playful

"A wicked prank."

adjective: morally bad in principle or practice