infinitude vs infiniteness

infinitude and infiniteness both are nouns.

Word	Noun	Adjective	Verb	Adverb
infinitude	Yes	No	No	No
infiniteness	Yes	No	No	No

As nouns, infinitude and infiniteness are synonyms defined as:

infinitude and infiniteness: the quality of being infinite; without bound or limit

Other synonyms of infinitude include boundlessness, limitlessness, unboundedness.

infinitude (noun)	infiniteness (noun)
the quality of being infinite; without bound or limit	the quality of being infinite; without bound or limit
an infinite quantity