stealthiness vs sneakiness

stealthiness and sneakiness both are nouns.

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

As nouns, stealthiness and sneakiness are synonyms defined as:

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

Other synonyms of stealthiness include furtiveness.

stealthiness (noun)	sneakiness (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