[ ram-buhngk-shuh s ]
/ ræmˈbʌŋk ʃəs /


difficult to control or handle; wildly boisterous: a rambunctious child.
turbulently active and noisy: a social gathering that became rambunctious and out of hand.


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Origin of rambunctious

An Americanism dating back to 1820–30; origin uncertain

OTHER WORDS FROM rambunctious

ram·bunc·tious·ly, adverbram·bunc·tious·ness, noun

Words nearby rambunctious

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

British Dictionary definitions for rambunctiously

/ (ræmˈbʌŋkʃəs) /


informal boisterous; unruly

Derived forms of rambunctious

rambunctiously, adverbrambunctiousness, noun

Word Origin for rambunctious

C19: probably from Icelandic ram- (intensifying prefix) + -bunctious, from bumptious
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012