unboundedness vs limitlessness

unboundedness and limitlessness both are nouns.

Word	Noun	Adjective	Verb	Adverb
unboundedness	Yes	No	No	No
limitlessness	Yes	No	No	No

As nouns, unboundedness and limitlessness are synonyms defined as:

unboundedness and limitlessness: the quality of being infinite; without bound or limit

Other synonyms of unboundedness include boundlessness, infiniteness, infinitude.

unboundedness (noun)	limitlessness (noun)
the quality of being infinite; without bound or limit	the quality of being infinite; without bound or limit