1. to overcome completely; to gain control over by superior force or strength
Usage: formal
2. to overwhelm with emotion or feeling
Usage: formal

Examples

• The rebels were eventually overmastered by the government forces.
• Fear began to overmaster his rational thoughts.
• She struggled not to let grief overmaster her during the ceremony.
• The experienced team overmastered their younger opponents.
• Anger overmastered him and he said things he later regretted.
• The fortress was overmastered after a long siege.