stupid vs jerky

stupid and jerky both are nouns.

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

stupid (noun)	jerky (noun)
a person who is not very bright	meat (especially beef) cut in strips and dried in the sun

stupid (adjective)	jerky (adjective)
lacking or marked by lack of intellectual acuity	having or revealing stupidity
lacking intelligence	marked by abrupt transitions
in a state of mental numbness especially as resulting from shock	lacking a steady rhythm