1. comparative form of fruitful; more productive, beneficial, or successful in results
Usage: comparative degree of the adjective 'fruitful'

Examples

• This approach proved fruitfuller than the previous method.
• The second meeting was fruitfuller in terms of generating new ideas.
• Her research became fruitfuller after she changed her focus.
• The collaboration turned out to be fruitfuller than anyone expected.
• His efforts were fruitfuller when he worked with a team.