sizeableness vs immenseness

sizeableness and immenseness both are nouns.

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

As nouns, sizeableness and immenseness are synonyms defined as:

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

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

sizeableness (noun)	immenseness (noun)
unusual largeness in size or extent or number	unusual largeness in size or extent or number