General Synonyms:
* Disorder: Lack of order or organization.
* Turmoil: A state of great commotion, confusion, or disturbance.
* Confusion: A state of being unclear or uncertain.
* Uproar: A state of great noise and confusion.
* Disarray: A state of being disordered or disorganized.
* Mayhem: Wild and uncontrolled disorder.
More Specific Synonyms:
* Anarchy: Absence of any form of government or law.
* pandemonium: Wild uproar and confusion.
* Bedlam: A scene of noisy confusion and wild disorder.
* Hullabaloo: A great noise and commotion.
* Tumult: A loud, confused noise, especially caused by a crowd.
The best synonym to use will depend on the specific context and the type of chaos you want to describe.