chaotic

Short definition from Wiktionary

Adjective

1. 1
   Filled with chaos.
2. 2
   Extremely disorganized or in disarray.
3. 3
   Highly sensitive to starting conditions, so that a small change to them may yield a very different outcome.
4. 4
   Aligned against following or upholding laws and principles.

Noun

1. 1
   A character having a chaotic alignment.