Maniacal

[ muh-nahy-uh-kuh l ]

adjective

1. exhibiting extremely wild or violent behavior.
2. exhibiting or denoting obsessive enthusiasm.

Examples of maniacal in a sentence:

• When Josh consumed too many whiskey shots, he took off his clothes and started to dance in a maniacal way.
• Several police cars pursued the man who was driving in a maniacal manner.