A “Fruit” Reflects Upon What It Means to Be “Fruitful” .. succession, the true and deep meaning of this commandment has been forgotten. Fruitful definition: Something that is fruitful produces good and useful results. COBUILD Advanced English Dictionary. 1. bearing fruit in abundance. iphone-wallpapers.infog: bars. Define fruitful. fruitful synonyms, fruitful pronunciation, fruitful translation, English dictionary definition of fruitful. adj. 1. a. Producing fruit, especially in iphone-wallpapers.infog: bars.