smuggled vs contraband

smuggled is not a noun while contraband is a noun.

Word	Noun	Adjective	Verb	Adverb
smuggled	No	Yes	No	No
contraband	Yes	Yes	No	No

As adjectives, smuggled and contraband are synonyms defined as:

Other synonyms of smuggled include black-market, black, bootleg.

smuggled (noun)	contraband (noun)
	goods whose importation or exportation or possession is prohibited by law

smuggled (adjective)	contraband (adjective)
distributed or sold illicitly	distributed or sold illicitly