sizeableness vs enormousness

sizeableness and enormousness both are nouns.

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

As nouns, sizeableness and enormousness are synonyms defined as:

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

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

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