producing good results; beneficial; profitable

fruitful investigations.

abounding in fruit, as trees or other plants; bearing fruit abundantly.

producing an abundant growth, as of fruit

fruitful soil; fruitful rain.

adjective

barren , impotent , sterile , unfruitful , unproductive

adjective

abounding , abundant , advantageous , beneficial , blooming , blossoming , breeding , childing , conducive , copious , effective , fecund , fertile , flourishing , flush , fructiferous , gainful , plenteous , plentiful , profitable , profuse , proliferant , prolific , propagating , reproducing , rewarding , rich , spawning , successful , useful , well-spent , worthwhile , productive , ample , bountiful , frugiferous , inventive , pregnant , procreant