rambunctious
Concise Oxford English Dictionary © 2008 Oxford University Press:
rambunctious /ramˈbʌŋ(k)ʃəs/
▶adjective informal, chiefly N. Amer. uncontrollably exuberant.
– derivatives
rambunctiously adverb,
rambunctiousness noun.
rambunctiously adverb,
rambunctiousness noun.
– origin C19: of unknown origin.
'rambunctious' also found in these Oxford entries:

