greatness vs wideness

greatness and wideness both are nouns.

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

As nouns, greatness and wideness are synonyms defined as:

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

greatness (noun)	wideness (noun)
the property possessed by something or someone of outstanding importance or eminence	the property of being wide; having great width
unusual largeness in size or extent or number	unusual largeness in size or extent or number