pioneering
adjectiveUK /ˌpaɪəˈnɪərɪŋ/
US /ˌpaɪəˈnɪrɪŋ/
Being the first to try or do something new.
The pioneering scientist discovered a brand-new way to clean water.
OTHER MEANINGS
2. The act of being one of the first people to explore or settle a new place.
Their pioneering of the wild forest took many years.
3. Introducing a new idea or method that others later follow.
Her pioneering work in medicine helped many patients.
4. Leading the way in a new field of study or activity.
The team's pioneering research changed how we understand the ocean.