manageableness vs flexibility

manageableness and flexibility both are nouns.

Word	Noun	Adjective	Verb	Adverb
manageableness	Yes	No	No	No
flexibility	Yes	No	No	No

As nouns, flexibility is a hypernym of manageableness; that is, flexibility is a word with a broader meaning than manageableness:

Other hypernyms of manageableness include tractability, tractableness.

manageableness (noun)	flexibility (noun)
the capability of being managed or controlled	the quality of being adaptable or variable
	the property of being flexible; easily bent or shaped
	the trait of being easily persuaded