Wiktionary
governmentless
a. Without a government.
Usage examples of "governmentless".
But it's not quite possible to believe fully in either his or Vinge's governmentless society.
If it's hard to imagine a world in which a 4 percent income tax is unthinkable, it's much harder to imagine how a governmentless society could avoid breaking out into a civil war, or simply degenerating into chaos.