sizable vs tidy

sizable is not a noun while tidy is a noun.

Word	Noun	Adjective	Verb	Adverb
sizable	No	Yes	No	No
tidy	Yes	Yes	Yes	No

As adjectives, sizable and tidy are synonyms defined as:

Other synonyms of sizable include goodish, goodly, healthy, hefty, respectable, sizeable.

sizable (noun)	tidy (noun)
	receptacle that holds odds and ends (as sewing materials)

sizable (adjective)	tidy (adjective)
large in amount or extent or degree	marked by order and cleanliness in appearance or habits
fairly large in size	large in amount or extent or degree
	(of hair) neat and tidy

sizable (verb)	tidy (verb)
	put (things or places) in order