1. a person or thing that blocks or hinders progress or movement

Examples

• The fallen tree was a major obstructor on the hiking trail.
• He was labeled an obstructor for constantly opposing the new policies.
• The committee identified several obstructors to the reform process.
• Traffic cones served as obstructors to prevent cars from entering the construction zone.
• She refused to be an obstructor and instead offered constructive solutions.
• The debris acted as an obstructor in the drainage system.