Vendetta 601 Words You Need to Know
/venˈdet.ə/ (noun)
Definition
deep-rooted and prolonged feud or quarrel between families in which members try to kill each other to take revenge, blood feud, grudge, dispute, hostility
Example
Vendetta, feud, also called blood feud is a continuing state of conflict between two groups within a society (typically kinship groups) characterized by violence, usually killings and counter-killings. It exists in many nonliterate communities in which there is an absence of law or a breakdown of legal procedures and in which attempts to redress a grievance in a way that is acceptable to both parties have failed.
Source: https://www.britannica.com/
Antonyms
reconciliation, amity, rapprochement