"Chaotic behavior" refers to actions or situations that are unpredictable, disorderly, and lack organization. It suggests a lack of control or stability in behavior and can describe situations that are confusing or out of control. Full definition
You will forever be on the receiving end of intrusive, controlling, chaotic behaviors which will make you and your kids crazy. (illinoisdivorcelawyerblog.com)
He lacks some special moves and chaotic behavior compared to other games he has been in, but he feels more useful here. (levelsmack.com)
Wojick: «You have left out that the system is chaotic, hence subject to strong nonlinear negative feedbacks (which are required for chaotic behavior).» (judithcurry.com)