stupid vs stupid

stupid and stupid both are nouns.

Word	Noun	Adjective	Verb	Adverb
stupid	Yes	Yes	No	No
stupid	Yes	Yes	No	No

stupid (noun)	stupid (noun)
a person who is not very bright	a person who is not very bright

stupid (adjective)	stupid (adjective)
lacking or marked by lack of intellectual acuity	lacking or marked by lack of intellectual acuity
lacking intelligence	lacking intelligence
in a state of mental numbness especially as resulting from shock	in a state of mental numbness especially as resulting from shock