75 entries under silliness topic. ×

7
tomfoolery(noun, trouble, play, pleasure, excitement)
6
flummery(noun, merriment, triviality, levity)
6
giddiness(noun, merriment, foolishness, mischief, levity)
6
thoughtlessness(noun, drivel, garbage, irrationality)
5
horseplay(noun, trouble, play, pleasure, excitement)
5
imprudence(noun, extravagance, apathy, absurdity, stupidity)
4
antics(trouble, absurdity, foolishness, mischief, to-do)
4
asininity(noun, apathy, absurdity, foolishness)
4
joking(noun, play, pleasure, excitement, scorn)
3
foolery(noun, play, pleasure, excitement, ability)
3
triviality(noun, important, surface, absurdity, stupidity)
3
unreasonableness(noun, absurdity, stupidity, irrationality)
2
clowning(noun, play, pleasure, excitement, sport)
2
irresponsibility(absurdity, stupidity, foolishness, mischief)
2
shallowness(apathy, absurdity, merriment, triviality, levity)
2
sport(noun, play, pleasure, excitement, scorn)
2
witlessness(absurdity, stupidity, foolishness, madness)
1
carrying-on(absurdity, stupidity, foolishness, mischief)
1
childishness(merriment, triviality, levity, superficiality)
1
coquetting(merriment, triviality, levity, superficiality)
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APASmart Define. (2016). nonsense thesaurus. Retrieved September 30, 2026, from https://smartdefine.org/nonsense/thesaurus/synonyms
ChicagoSmart Define. 2016. "nonsense thesaurus" https://smartdefine.org/nonsense/thesaurus/synonyms (accessed September 30, 2026).
HarvardSmart Define 2016, nonsense thesaurus, Smart Define, viewed 30 September, 2026, <https://smartdefine.org/nonsense/thesaurus/synonyms>.
MLASmart Define. "nonsense thesaurus" 29 March 2016. Web. 30 September 2026. <https://smartdefine.org/nonsense/thesaurus/synonyms>