The word “rambunctious”.

The word “rambunctious” is not often seen in polite sentences these days, possibly because of its unruly length and large number of vowels, lacking only the ‘e’ to complete the vowel quintet.

The rowdy behavior described as rambunctious can only apply to a certain set of living beings, like puppies and teenagers. On the other hand one would never use the phrase “rambunctious turnips” unless attempting to win the Best Rock Band naming contest.