stately vs noble

stately is not a noun while noble is a noun.

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

As adjectives, stately and noble are synonyms defined as:

Other synonyms of stately include baronial, imposing.

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

stately (adjective)	noble (adjective)
refined or imposing in manner or appearance; befitting a royal court	having or showing or indicative of high or elevated character
impressive in size, manner, or appearance	of or belonging to or constituting the hereditary aristocracy especially as derived from feudal times
of size and dignity suggestive of a statue	impressive in size, manner, or appearance
	inert especially toward oxygen