1. to cause someone to fall from a horse
Usage: third person singular present tense
2. to remove someone from a position of power or authority
Usage: figurative; third person singular present tense

Examples

• The knight unhorses his opponent with a powerful lance strike.
• A sudden movement unhorses the inexperienced rider.
• The scandal unhorses the popular politician from office.
• The challenger unhorses the defending champion in the tournament.
• Bad weather unhorses even the most skilled equestrians.
• The investigation unhorses several corrupt officials.
• A well-placed blow unhorses the armored warrior.