1. the quality or state of producing abundant fruit or crops; fertility
2. the quality of being productive, profitable, or yielding good results

Examples

• The fruitfulness of the orchard impressed the farmers after the abundant spring rains.
• Her research demonstrated remarkable fruitfulness, leading to several important discoveries.
• The fruitfulness of their collaboration resulted in a bestselling novel.
• Ancient civilizations valued the fruitfulness of the Nile River valley.
• The project's fruitfulness exceeded all expectations.
• Gardeners often speak of the fruitfulness of well-composted soil.