乱暴

Etymology
From ran (乱, disordered, confused, chaotic) + bō (暴, acting with destructive force).

Adjective

 * 1) rude, violent, rough, disorderly, lawless, unreasonable, reckless

Noun

 * 1) violence, outrage, roughness
 * 2) rape

Derived terms

 * (ranbōmono): thug, hooligan
 * (ranbōrōzeki): running amuck

Verb

 * 1) be rude, roughhouse, act violently or recklessly