8
frivolous
7
featherbrained
6
funny
5
playful
5
goofy
4
giddy
4
frolicsome(adjective, playful)
3
humorous
3
hysterical
3
antic
2
comic
2
adventurous(adjective, indecorous)
2
capricious(adjective, reasonable, predictable, given)
2
crude
2
daft
2
droll
2
farcical
2
flighty
2
foolish
2
harebrained
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APASmart Define. (2016). staid thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/staid/thesaurus/antonyms
ChicagoSmart Define. 2016. "staid thesaurus" https://smartdefine.org/staid/thesaurus/antonyms (accessed September 22, 2026).
HarvardSmart Define 2016, staid thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/staid/thesaurus/antonyms>.
MLASmart Define. "staid thesaurus" 19 February 2016. Web. 22 September 2026. <https://smartdefine.org/staid/thesaurus/antonyms>