closeness vs sneakiness

closeness and sneakiness both are nouns.

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

As nouns, sneakiness is a hyponym of closeness; that is, sneakiness is a word with a more specific, narrower meaning than closeness:

closeness: characterized by a lack of openness (especially about one's actions or purposes)
sneakiness: a disposition to be sly and stealthy and to do things surreptitiously

Other hyponyms of closeness include furtiveness, stealthiness.

closeness (noun)	sneakiness (noun)
the spatial property resulting from a relatively small distance	a disposition to be sly and stealthy and to do things surreptitiously
characterized by a lack of openness (especially about one's actions or purposes)
the quality of being close and poorly ventilated
close or warm friendship
extreme stinginess
a feeling of being intimate and belonging together