wicked

If you are wicked you often do evil things. More than that, a wicked person enjoys evil.

Example: The wicked witch terrorized the peasants of the village.

A wicked act is something someone does that is very evil.

Example: He will be punished for his wicked acts.

If something is wicked, it is excellent.

Example: That was a wicked guitar solo!

If something is wicked, it has a wick in it.

The past tense and past participle of wick.