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Synonyms for Ungoverned (same or very similar meaning)

WordNet sense 1 (not restrained or controlled):
unbridled, unchecked, uncurbed

WordNet sense 2 (not subject to restraint):
unrestrained

WordNet sense 3 (lacking in discipline or control):
undisciplined

WordNet sense 4 (not being under control; out of control):
uncontrolled


From the ODE community, based on WordNetadd/edit