fruitless Antonyms

fruitful productive efficacious useful effective pregnant successful uberous utile valuable vegetative substantial sleeved procreant procreative profitable proliferous prolific puberal remunerative rewarding serviceable visioned worthwhile moneymaking of service of help of assistance accomplish a result achieve a result achieve results achieve something achieve the results worth the effort highly successful of use meaningful supportive impactful of value worth it worth one's while achieve an outcome achieve outcome achieving a result practical able constructive contributive copious