unoriginal vs dusty

unoriginal and dusty both are adjectives.

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

unoriginal (adjective)	dusty (adjective)
not original; not being or productive of something fresh and unusual	covered with a layer of dust
	lacking originality or spontaneity; no longer new