1. being among the first to develop or use new methods, ideas, or techniques; innovative and groundbreaking

Examples

• Her pioneering research in genetics led to major medical breakthroughs.
• The company’s pioneering use of solar technology changed the industry.
• He was recognized for his pioneering work in computer science.
• The pioneering spirit of early settlers shaped the American West.
• This pioneering treatment offers hope to cancer patients.
• The museum features pioneering artists from the 20th century.