treasonist vs malefactor

treasonist and malefactor both are nouns.

Word	Noun	Adjective	Verb	Adverb
treasonist	Yes	No	No	No
malefactor	Yes	No	No	No

As nouns, malefactor is a hypernym of treasonist; that is, malefactor is a word with a broader meaning than treasonist:

treasonist: someone who betrays his country by committing treason
malefactor: someone who has committed a crime or has been legally convicted of a crime

Other hypernyms of treasonist include criminal, crook, felon, outlaw.

treasonist (noun)	malefactor (noun)
someone who betrays his country by committing treason	someone who has committed a crime or has been legally convicted of a crime