limitlessness vs infinitude

limitlessness and infinitude both are nouns.

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

As nouns, limitlessness and infinitude are synonyms defined as:

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

Other synonyms of limitlessness include boundlessness, infiniteness, unboundedness.

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