stealthiness vs furtiveness

stealthiness and furtiveness both are nouns.

Word	Noun	Adjective	Verb	Adverb
stealthiness	Yes	No	No	No
furtiveness	Yes	No	No	No

As nouns, stealthiness and furtiveness are synonyms defined as:

stealthiness and furtiveness: a disposition to be sly and stealthy and to do things surreptitiously

Other synonyms of stealthiness include sneakiness.

stealthiness (noun)	furtiveness (noun)
a disposition to be sly and stealthy and to do things surreptitiously	a disposition to be sly and stealthy and to do things surreptitiously