sneakiness vs furtiveness

sneakiness and furtiveness both are nouns.

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

As nouns, sneakiness and furtiveness are synonyms defined as:

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

Other synonyms of sneakiness include stealthiness.

sneakiness (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