1. in a way that strongly influences later developments; in a groundbreaking or foundational manner
Usage: formal

Examples

• The Beatles seminally influenced rock music for decades to come.
• Her research seminally changed how we understand climate patterns.
• The novel seminally established the conventions of science fiction.
• Darwin’s work seminally transformed biological science.
• The invention seminally altered modern communication.
• His ideas seminally shaped political theory in the 20th century.