Antonyms of adv unpleasantly

1 sense of unpleasantly

Sense 1
unpleasantly -- (in an unpleasant manner; "he had been unpleasantly surprised")
       Antonym of pleasantly (Sense 2)
      => pleasantly, agreeably, enjoyably -- (in an enjoyable manner; "we spent a pleasantly lazy afternoon")

Synonyms of adv unpleasantly

1 sense of unpleasantly

Sense 1
unpleasantly -- (in an unpleasant manner; "he had been unpleasantly surprised")