from The American Heritage® Dictionary of the English Language, 4th Edition
- adj. Uncontrollably exuberant; unruly: "Common to both his illustrations and his independent paintings . . . and lurking below their rumbustious surface, is a sympathy for the vulnerability of the ordinary human being” ( Christopher Andreae).
from Wiktionary, Creative Commons Attribution/Share-Alike License
- adj. boisterous and unruly
from The Century Dictionary and Cyclopedia
- Same as rambustious.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- adj. noisy and lacking in restraint or discipline
Probably alteration of robustious (influenced by rambunctious).(American Heritage® Dictionary of the English Language, Fourth Edition)
Possibly alteration of robustious (Wiktionary)