1. not mutual; not given or done in return
2. having different properties or behaviors in opposite directions
Usage: technical; physics

Examples

• Their friendship was nonreciprocal; she always helped him but he never returned the favor.
• The trade agreement was criticized as nonreciprocal, benefiting only one country.
• His feelings for her were nonreciprocal; she didn’t share his romantic interest.
• The nonreciprocal nature of the relationship made it unsustainable.
• Scientists studied the nonreciprocal properties of the magnetic material.
• The device exhibited nonreciprocal behavior, working differently in each direction.