noble vs impressive

noble is a noun but impressive is not a noun.

Word	Noun	Adjective	Verb	Adverb
noble	Yes	Yes	No	No
impressive	No	Yes	No	No

noble (noun)	impressive (noun)
a titled peer of the realm

noble (adjective)	impressive (adjective)
having or showing or indicative of high or elevated character	making a strong or vivid impression
of or belonging to or constituting the hereditary aristocracy especially as derived from feudal times	producing a strong effect
impressive in size, manner, or appearance
inert especially toward oxygen