fruitful
adj.producing good or useful results. You use this to describe a meeting, a project, or a conversation that was successful and worth the effort.
adj.producing good or helpful results; productive. Often used to describe abstract concepts like discussions, collaborations, or periods of time.
“We had a very fruitful meeting this morning.”
“The two scientists began a fruitful collaboration that eventually led to a major breakthrough in renewable energy.”
“While the initial negotiations were tense, they ultimately proved fruitful, resulting in a comprehensive trade agreement that benefited both nations for decades.”
Often follows linking verbs like 'be', 'prove', or 'become'.
“The 42-year-old has shifted the way London City play and a host of new signings could prove fruitful in his system.”
From Middle English fruitefull, equivalent to fruit + -ful. Compare Dutch vruchtvol, German fruchtvoll, Swedish fruktfull.
Etymology adapted from Wiktionary, available under CC BY-SA 4.0.