Antonyms of adv fruitfully

1 sense of fruitfully

Sense 1
productively, fruitfully, profitably -- (in a productive way; "they worked together productively for two years")
       Antonym of fruitlessly (Sense 1)
      => unproductively, fruitlessly, unprofitably -- (in an unproductive manner)

Synonyms of adv fruitfully

1 sense of fruitfully

Sense 1
productively, fruitfully, profitably -- (in a productive way; "they worked together productively for two years")