peddler vs criminal

peddler and criminal both are nouns.

Word	Noun	Adjective	Verb	Adverb
peddler	Yes	No	No	No
criminal	Yes	Yes	No	No

As nouns, criminal is a hypernym of peddler; that is, criminal is a word with a broader meaning than peddler:

peddler: an unlicensed dealer in illegal drugs
criminal: someone who has committed a crime or has been legally convicted of a crime

Other hypernyms of peddler include crook, felon, malefactor, outlaw, dealer.

peddler (noun)	criminal (noun)
someone who travels about selling his wares (as on the streets or at carnivals)	someone who has committed a crime or has been legally convicted of a crime
an unlicensed dealer in illegal drugs

peddler (adjective)	criminal (adjective)
	guilty of crime or serious offense
	involving or being or having the nature of a crime
	bringing or deserving severe rebuke or censure