wideness vs grandness

wideness and grandness both are nouns.

Word	Noun	Adjective	Verb	Adverb
wideness	Yes	No	No	No
grandness	Yes	No	No	No

As nouns, wideness and grandness are synonyms defined as:

Other synonyms of wideness include enormousness, greatness, immenseness, immensity, sizeableness, vastness.

wideness (noun)	grandness (noun)
the property of being wide; having great width	the quality of being magnificent or splendid or grand
unusual largeness in size or extent or number	unusual largeness in size or extent or number
	splendid or imposing in size or appearance
	a prominent status