dust vs dusty

dust is a noun but dusty is not a noun.

Word	Noun	Adjective	Verb	Adverb
dust	Yes	No	Yes	No
dusty	No	Yes	No	No

dust (noun)	dusty (noun)
fine powdery material such as dry earth or pollen that can be blown about in the air
the remains of something that has been destroyed or broken up
free microscopic particles of solid material

dust (adjective)	dusty (adjective)
	covered with a layer of dust
	lacking originality or spontaneity; no longer new

dust (verb)	dusty (verb)
remove the dust from
distribute loosely
rub the dust over a surface so as to blur the outlines of a shape
cover with a light dusting of a substance