wideness vs sizeableness

wideness and sizeableness both are nouns.

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

As nouns, wideness and sizeableness are synonyms defined as:

wideness and sizeableness: unusual largeness in size or extent or number

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

wideness (noun)	sizeableness (noun)
the property of being wide; having great width	unusual largeness in size or extent or number
unusual largeness in size or extent or number