Wordnet 3.0
ADJECTIVE (1)
1. 
 noisy and lacking in restraint or discipline; 
- Example: "a boisterous crowd"- Example: "a social gathering that became rambunctious and out of hand"- Example: "a robustious group of teenagers"- Example: "beneath the rumbustious surface of his paintings is sympathy for the vulnerability of ordinary human beings"- Example: "an unruly class"[syn: boisterous, rambunctious, robustious, rumbustious, unruly]
WordNet (r) 3.0 (2006):
rambunctious
    adj 1: 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, rumbustious, unruly]