- unbridled, unchecked, uncurbed, ungoverned - not restrained or controlled; "unbridled rage"; "an unchecked temper"; "ungoverned rage"
Antonym: restrained (indirect, via unrestrained)
- undisciplined, ungoverned - lacking in discipline or control; "undisciplined behavior"; "ungoverned youth"
Antonym: controlled (indirect, via uncontrolled)