/ɪnˈtrɛntʃt/ – adjective
Definition: Được bảo vệ chặt chẽ, không dễ thay đổi.
A more thorough explanation: if something is entrenched then it is difficult or impossible to change, especially because it has been there for a long time
Example: If a board’s power is not entrenched, any board decision can be overridden at any time by shareholders.