12
cheerful
9
happy(adjective, cheerful)
5
cheery
5
gleeful
4
beaming
4
delighted
4
glad(adjective, cheerful)
4
joyful(adjective, cheerful)
4
merry
3
bright(adjective, cheerful)
2
chipper
2
blithe
2
encouraging
2
festive
2
jocular
2
jocund
2
jolly
2
jovial
2
joyous
2
mirthful
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APASmart Define. (2016). glum thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/glum/thesaurus/antonyms
ChicagoSmart Define. 2016. "glum thesaurus" https://smartdefine.org/glum/thesaurus/antonyms (accessed September 23, 2026).
HarvardSmart Define 2016, glum thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/glum/thesaurus/antonyms>.
MLASmart Define. "glum thesaurus" 24 March 2016. Web. 23 September 2026. <https://smartdefine.org/glum/thesaurus/antonyms>