arsonist vs criminal

arsonist and criminal both are nouns.

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

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

arsonist: a criminal who illegally sets fire to property
criminal: someone who has committed a crime or has been legally convicted of a crime

Other hypernyms of arsonist include crook, felon, malefactor, outlaw.

arsonist (noun)	criminal (noun)
a criminal who illegally sets fire to property	someone who has committed a crime or has been legally convicted of a crime

arsonist (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