internecine vs internal

internecine and internal both are adjectives.

Word	Noun	Adjective	Verb	Adverb
internecine	No	Yes	No	No
internal	No	Yes	No	No

internecine (adjective)	internal (adjective)
characterized by bloodshed and carnage for both sides	happening or arising or located within some limits or especially surface
(of conflict) within a group or organization	inside the country
	occurring within an institution or community
	innermost or essential
	located inward