Undisciplined
Part of speech: adjective
Definition: not subjected to discipline or correction; uncorrected lacking in control; ungoverned
Example sentence: Part of Obama's persona is self-reliance. He's calm; he's cool; he's self-possessed. In many ways, he has tried to define himself in opposition to Clinton's sometimes needy, often undisciplined, emotionalism.
Uncontrolled
Part of speech: adjective
Definition: not controlled