1. Noisy and lacking in restraint or discipline
   "beneath the rumbustious surface of his paintings is sympathy for the vulnerability of ordinary human beings"
   - boisterous, rambunctious [N. Amer], robustious, unruly

See also: disorderly

• inquiry agent
• inquisition
• inquisitional
• inquisitive
• inquisitively
• inquisitiveness
• inquisitor
• inquisitorial
• inquisitory
• inquorate
• INR
• inro
• inroad
• inrush
• INS
• ins and outs
• insalubrious
• insalubriousness
• insalubrity
• insane
• insane asylum
• insanely
• insaneness
• insanitary
• insanitation