Antonyms of adv unfortunately

1 sense of unfortunately

Sense 1
unfortunately, unluckily, regrettably, alas -- (by bad luck; "unfortunately it rained all day"; "alas, I cannot stay")
       Antonym of fortunately (Sense 1)
      => fortunately, fortuitously, luckily, as luck would have it -- (by good fortune; "fortunately the weather was good")

Synonyms of adv unfortunately

1 sense of unfortunately

Sense 1
unfortunately, unluckily, regrettably, alas -- (by bad luck; "unfortunately it rained all day"; "alas, I cannot stay")