Well it's not that black and white really, or at least it's not supposed to be. 

Neutral means they don't exactly lean towards evil or good.

Chaotic can mean they are slightly deranged, spastic in thought or simply a bit off. 

That could mean a chaotic neutral is someone who works for themselves by any means, or at least for what they hold dear. It isn't always someone who makes no intense decisions, it's just why they make those decisions and how.