colourless vs pasty

colourless is not a noun while pasty is a noun.

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

colourless (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

colourless (adjective)	pasty (adjective)
weak in color; not colorful	having the sticky properties of an adhesive
lacking in variety and interest	resembling paste in color; pallid