robustious vs rambunctious

robustious and rambunctious both are adjectives.

Word	Noun	Adjective	Verb	Adverb
robustious	No	Yes	No	No
rambunctious	No	Yes	No	No

As adjectives, robustious and rambunctious are synonyms defined as:

robustious and rambunctious: noisy and lacking in restraint or discipline

Other synonyms of robustious include boisterous, rumbustious, unruly.

robustious (adjective)	rambunctious (adjective)
noisy and lacking in restraint or discipline	noisy and lacking in restraint or discipline