Source : WordNet®

rumbustious
     adj : noisy and lacking in restraint or discipline; "a boisterous
           crowd"; "a social gathering that became rambunctious
           and out of hand"; "a robustious group of teenagers";
           "beneath the rumbustious surface of his paintings is
           sympathy for the vulnerability of ordinary human
           beings"; "an unruly class" [syn: {boisterous}, {rambunctious},
            {robustious}, {unruly}]