Antonyms of adv unproductively

1 sense of unproductively

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

Synonyms of adv unproductively

1 sense of unproductively

Sense 1
unproductively, fruitlessly, unprofitably -- (in an unproductive manner)