Anarchism and chaos.
Anarchy
A lack of a formal governing and legal system is generally referred to as ANARCHY.
Anarchy is a condition where there is no government. Also the term is used when it seems that there is no law and order.
Heterarchy. "Anarchy" is the antonym of rule-of-law, and describes a specific political state where there is an absence of government.
A society without government or laws would be considered an anarchy, unless that nation is going through a revolution.
Absence of government; the state of society where there is no law or supreme power; a state of lawlessness; political confusion., Hence, confusion or disorder, in general.
Anarchy.
Anarchy
Feudalism
That's rather a delicate question. The denotative antonym of "Government" in "anarchy," which could perhaps be applied in this situation.
anarchy
complete absence of government