stalwart vs courageous

stalwart is a noun but courageous is not a noun.

Word	Noun	Adjective	Verb	Adverb
stalwart	Yes	Yes	No	No
courageous	No	Yes	No	No

stalwart (noun)	courageous (noun)
a person who is loyal to their allegiance (especially in times of revolt)

stalwart (adjective)	courageous (adjective)
used especially of persons	possessing or displaying courage; able to face and deal with danger or fear without flinching
dependable
having rugged physical strength; inured to fatigue or hardships