completeness vs incompleteness

completeness and incompleteness both are nouns.

Word	Noun	Adjective	Verb	Adverb
completeness	Yes	No	No	No
incompleteness	Yes	No	No	No

completeness (noun)	incompleteness (noun)
(logic) an attribute of a logical system that is so constituted that a contradiction arises if any proposition is introduced that cannot be derived from the axioms of the system	the state of being crude and incomplete and imperfect
the state of being complete and entire; having everything that is needed