1. to establish something so firmly that it becomes very difficult to change or remove
2. to dig trenches for defensive purposes
Usage: military

Examples

• The corrupt practices became entrenched in the organization over decades.
• Traditional gender roles remain deeply entrenched in some societies.
• The soldiers entrenched themselves on the hilltop before the battle.
• These outdated policies have become so entrenched that reform seems impossible.
• The company’s culture of secrecy is firmly entrenched.
• The troops entrenched their position along the river.
• Racial prejudice can become entrenched across generations.