ob·strep·er·ous
/əbˈstrepərəs/
adjective
noisy and difficult to control.
"the boy is cocky and obstreperous"
synonyms: unruly, unmanageable, disorderly, undisciplined, uncontrollable, unrestrained, rowdy, uncontrolled, disruptive, truculent, difficult, refractory, rebellious, mutinous, out of hand, riotous, out of control, wild, turbulent, uproarious, tumultuous, tempestuous, unbridled, irrepressible, boisterous, roisterous, rackety