lawless
Not following laws or rules; wild and out of control.
Lawless means without law or order, or refusing to obey laws and rules. A lawless frontier town in the Old West might have had no sheriff, no courts, and no one to stop criminals from stealing horses or robbing banks. In such places, people had to protect themselves because there was no organized system of justice.
The word can describe places, times, or people. A lawless region lacks effective government or police to enforce rules. Lawless behavior means acting as if laws don't apply to you, like a lawless gang that robs and terrorizes without fear of consequences. During lawless times, like periods of war or breakdown of government, normal rules may stop working and chaos can take over.
When someone calls another person lawless, they're saying that person ignores laws and acts without regard for rules or authority. This is different from breaking a single rule by accident, or even on purpose once. Lawless suggests a pattern of behavior, a whole attitude of rejecting law and order.
The opposite of lawless is law-abiding, which describes people and places where rules are respected and followed. Lawfulness creates the stability and safety that lets communities thrive.