sticky vs stickiness

sticky is not a noun while stickiness is a noun.

Word	Noun	Adjective	Verb	Adverb
sticky	No	Yes	No	No
stickiness	Yes	No	No	No

sticky (noun)	stickiness (noun)
	the property of sticking to a surface

sticky (adjective)	stickiness (adjective)
having the sticky properties of an adhesive
hard to deal with; especially causing pain or embarrassment
covered with an adhesive material
hot or warm and humid
moist as with undried perspiration and with clothing sticking to the body