pasty vs sticky

pasty is a noun but sticky is not a noun.

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

As adjectives, pasty and sticky are synonyms defined as:

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

pasty (noun)	sticky (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

pasty (adjective)	sticky (adjective)
having the sticky properties of an adhesive	having the sticky properties of an adhesive
resembling paste in color; pallid	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