sticky vs pasty

sticky is not a noun while pasty is a noun.

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

As adjectives, sticky and pasty are synonyms defined as:

Other synonyms of sticky include gluey, glutinous, gummy, mucilaginous, viscid, viscous.

sticky (noun)	pasty (noun)
	small meat pie or turnover
	(usually used in the plural) one of a pair of adhesive patches worn to cover the nipples of exotic dancers and striptease performers

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