internecine

(adjective)

adjective

1. (of conflict) within a group or organization

- an internecine feud among proxy holders

Similar word(s): internal

2. characterized by bloodshed and carnage for both sides

- internecine war

Similar word(s): bloody

Sentences with internecine as an adjective:

- Internecine strife in Gaza claimed its most senior victim yesterday when militants assassinated one of the most hated security chiefs there.

- The Mongol people were plagued by internecine conflict until Genghis Khan unified them and focused their aggression outwards on other peoples.