Chaotic Neutral Alignment

Chaotic Neutral characters are free spirits. They do what they want but don’t seek to disrupt the norms and laws of society. These individuals don’t like being told what to do, following traditions or being controlled. That said, they will not work to change these restrictions, instead, they will just try to avoid them in the first place. Their need to be free is the most important thing.
Chaotic Neutral characters do what is most likely to ensure their freedom, protect their free will and get them the outcome they want. That might be a Good action like helping someone, or an Evil action like misleading someone. However, a Chaotic Neutral character is more likely to take a Good action than an Evil one because it usually results in a better outcome and an easier time of it for them. Chaotic Neutral characters might be one step away from being caught for a misdeed in one moment, then redeem themselves with a good action in the next moment.
Because Chaotic Neutral characters do what’s best for themselves they can be incredibly frustrating allies! For example, they might take all the loot for themselves and refuse to share it. Even worse, if they aren’t particularly loyal to anyone in the party and an encounter is going badly, they might just run away and leave everyone! They are very unlikely to die for others regardless of how loyal they are to those people.

Chaotic Neutral. (CN) creatures follow their whims, holding their personal freedom above all else. Many rogues and bards are chaotic neutral. -5e Basic Rules, Chapter 4: Personality and Background