Antonyms of adv helpfully

1 sense of helpfully

Sense 1
helpfully -- (in a helpful manner; "the subtitles are helpfully conveyed")
       Antonym of unhelpfully (Sense 1)
      => unhelpfully -- (in an unhelpful manner; "he stood by unhelpfully while the house burned down")

Synonyms of adv helpfully

1 sense of helpfully

Sense 1
helpfully -- (in a helpful manner; "the subtitles are helpfully conveyed")