voluminousness vs fullness

voluminousness and fullness both are nouns.

Word	Noun	Adjective	Verb	Adverb
voluminousness	Yes	No	No	No
fullness	Yes	No	No	No

As nouns, voluminousness and fullness are synonyms defined as:

Other synonyms of voluminousness include voluminosity.

voluminousness (noun)	fullness (noun)
greatness of volume	greatness of volume
	the property of a sensation that is rich and pleasing
	the condition of being filled to capacity
	completeness over a broad scope