malignment vs hatchet job

malignment and hatchet job both are nouns.

Word	Noun	Adjective	Verb	Adverb
malignment	Yes	No	No	No
hatchet job	Yes	No	No	No

As nouns, hatchet job is a hypernym of malignment; that is, hatchet job is a word with a broader meaning than malignment:

malignment: slanderous defamation
hatchet job: a false accusation of an offense or a malicious misrepresentation of someone's words or actions

Other hypernyms of malignment include calumniation, calumny, defamation, obloquy, traducement.

malignment (noun)	hatchet job (noun)
slanderous defamation	a false accusation of an offense or a malicious misrepresentation of someone's words or actions