Synonyms for Lightheartedly:

• adv.

  •cheerfully (adverb)
  • mirthfully,
  • sunnily,
  • merrily,
  • genially,
  • warmly,
  • agreeably,
  • affably,
  • Jollily,
  • congenially,
  • jauntily,
  • amiably,
  • brightly,
  • complaisantly,
  • cheerily,
  • pleasantly,
  • optimistically,
  • cordially.
  •gaily (adverb)
  • laughingly.
  •happily (adverb)
  • lightly,
  • gladly.

• Other synonyms:

  •Other relevant words:
  • resiliently,
  • nimbly,
  • jocundly,
  • blithesomely,
  • friskily,
  • Frolicsomely,
  • teasingly,
  • humorously,
  • briskly.

Antonyms for Lightheartedly:

• adv.

  • cheerfully
    grudgingly, gloomily, unwillingly.
  • gaily
    solemnly, sadly, unhappily.
  • happily
    unsuccessfully, unluckily.