twisty vs winding

twisty is not a noun while winding is a noun.

Word	Noun	Adjective	Verb	Adverb
twisty	No	Yes	No	No
winding	Yes	Yes	No	No

As adjectives, twisty and winding are synonyms defined as:

Other synonyms of twisty include tortuous, twisting, voluminous.

twisty (noun)	winding (noun)
	the act of winding or twisting

twisty (adjective)	winding (adjective)
marked by repeated turns and bends	marked by repeated turns and bends
	of a path e.g.