Willfull intent is working toward a goal and visualizing the successful out come.
Willful damage with intent to interfere with national defense is sabotage.
Malfeasance is willful conduct that leads to the harm of another. It is different from malpractice in that there is an element of intent involved.
Innocent infringement is a violation of copyright without willful intent. Accidentally moving an mp3 onto a shared drive would be innocent infringement.
Sabotage
Sabotage
Sabotage
The difference is in the user's intent. Willful infringement means the user planned and intended to violate copyright. Generally a person watching an infringing video on YouTube would be infringing, but a person systematically ripping and uploading thousands of DVDs to a file sharing service would be willfully infringing.
Sabotage
The jury found the defendant guilty of willful murder.
Willful means to purposely do something. A good sentence would be, he caused willful injury to the other boy when he hit him with the bat.
John's parents were dismayed at his willful misconduct. Julie's actions were willful and disregarding other people's feelings.
Ecocide is a neologism for the willful destruction of the environment.