comprehensiveness vs fullness

comprehensiveness and fullness both are nouns.

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

As nouns, comprehensiveness and fullness are synonyms defined as:

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