vengeful vs unforgiving

vengeful and unforgiving both are adjectives.

Word	Noun	Adjective	Verb	Adverb
vengeful	No	Yes	No	No
unforgiving	No	Yes	No	No

vengeful (adjective)	unforgiving (adjective)
disposed to seek revenge or intended for revenge	unwilling or unable to forgive or show mercy
	not to be placated or appeased or moved by entreaty