Prolific/prəˈlɪfɪk/ Definition 1 of 2Pro Tip 1/3Varied Usage Used in different fields to describe high output, like in writing, sports, or inventions. The team's new striker is expected to be a prolific scorer. Pro Tip 2/3Often Positive Typically a complimentary term, suggesting high productivity and value. Her prolific achievements in research won her multiple awards. Pro Tip 3/3Not Always Good Can suggest excessive or unwanted abundance, depending on context. The garden had a prolific number of weeds.