4
cheerfully
3
gaily
2
cheerily
2
excitedly
2
happily
2
joyfully
2
joyously
2
lightheartedly
2
merrily
2
mirthfully
1
gleefully
1
blissfully
1
blithely
1
celebratorily
1
delightedly
1
gladly
1
hopefully
1
lightly
1
sunnily
0
airily
11 years ago|850 views|share |citing 
APASmart Define. (2015). mournfully thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/mournfully/thesaurus/antonyms
ChicagoSmart Define. 2015. "mournfully thesaurus" https://smartdefine.org/mournfully/thesaurus/antonyms (accessed September 22, 2026).
HarvardSmart Define 2015, mournfully thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/mournfully/thesaurus/antonyms>.
MLASmart Define. "mournfully thesaurus" 14 April 2015. Web. 22 September 2026. <https://smartdefine.org/mournfully/thesaurus/antonyms>