Synonyms|443Antonyms|260|Broader|12Narrower|18Related|368
2
humor(noun, comedy, insincerity, funniness)
2
jollity
2
lightheartedness
2
mirth(work, sadness)
2
play(work, failure, idleness)
2
sport(noun, sadness, fun, joking)
2
triviality
2
wit(noun, humor)
1
cheeriness(sorrow, sadness)
1
escapade
1
facetiousness
1
giddiness
1
glee
1
ha-ha
1
jauntiness(sorrow, sadness)
1
joking
1
mischievousness
1
mockery(noun, honesty, joke, parody)
1
overexcitement
1
persiflage
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APASmart Define. (2015). seriousness thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/seriousness/thesaurus/antonyms
ChicagoSmart Define. 2015. "seriousness thesaurus" https://smartdefine.org/seriousness/thesaurus/antonyms (accessed September 25, 2026).
HarvardSmart Define 2015, seriousness thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/seriousness/thesaurus/antonyms>.
MLASmart Define. "seriousness thesaurus" 23 December 2015. Web. 25 September 2026. <https://smartdefine.org/seriousness/thesaurus/antonyms>