1. having no equal; superior to all others
2. not matched or paired with something else

Examples

• Her skill as a pianist is unmatched in the entire orchestra.
• The athlete’s speed remains unmatched by any competitor.
• He found an unmatched sock in the laundry basket.
• The company’s customer service is unmatched in the industry.
• She wore unmatched earrings as a fashion statement.
• His dedication to the project was unmatched by his colleagues.
• The drawer was full of unmatched gloves.