The way I see it a Chaotic Neutral character hates conformity, traditions, restrictive laws, authoritarian styles of governance. Note that this does not necessarily mean acts like a jerk to their friends or adventuring companions. A CN character will generally try to assert their independence from society in general. They will try to do things OUTSIDE the law where reasonably convenient due to disdain, distrust, or because they simply can't be bothered. Placed in a position of authority a CN character will try to keep their hands off as much as possible because they tend to believe that society functions best that way. Chaotic Neutral tends to correlate with counterculture, anarchism, and dislike of such practices as slavery, mind control magics, hierarchies, or imprisonment.
CN does NOT mean that a character is undisciplined, that they have no moral code (although it does presume that they are not prone to excessive altruistic urges toward individuals who are not their close friends/loved ones as that would make them CG), does not mean that they are inherently inconsistent or lazy.