Antonyms of adv usefully

1 sense of usefully

Sense 1
usefully -- (in a useful manner; "extra money could be usefully spent on this project")
       Antonym of uselessly (Sense 1)
      => uselessly -- (in a useless manner; "the furniture was sitting around uselessly")

Synonyms of adv usefully

1 sense of usefully

Sense 1
usefully -- (in a useful manner; "extra money could be usefully spent on this project")