intransitivity vs intransitiveness

intransitivity and intransitiveness both are nouns.

Word	Noun	Adjective	Verb	Adverb
intransitivity	Yes	No	No	No
intransitiveness	Yes	No	No	No

As nouns, intransitivity and intransitiveness are synonyms defined as:

intransitivity and intransitiveness: the grammatical relation created by an intransitive verb

intransitivity (noun)	intransitiveness (noun)
the grammatical relation created by an intransitive verb	the grammatical relation created by an intransitive verb