262 entries under adjective topic. ×

12
slight(mean, weak, soft, lower)
11
childish(silly, trivial, immature)
11
empty-headed(slight, ability, careless, silly)
10
flimsy(slight, poor, detail, trivial)
10
inconsequential(mean, light, weak, soft)
10
senseless(silly, trivial)
10
whimsical(free, pleasant, smart, wild)
10
worthless(slight, lower, value, small)
9
airy(thin, delicate, impulsive, unpredictable)
9
capricious(free, careless, wild, excited)
9
harebrained(ability, careless, excited, silly)
9
inane(slight, poor, careless, small)
9
playful(pleasant, keen, silly, trivial)
9
puerile(slight, poor, silly, stupid)
8
featherbrained(slight, ability, careless, silly)
8
goofy(dizzy, frothy, flighty, featherbrained)
8
nugatory(slight, lower, value, small)
8
pointless(silly, stupid, useless, trivial)
8
unserious
7
empty(slight, detail, small, silly)
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APASmart Define. (2015). frivolous thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/frivolous/thesaurus/synonyms
ChicagoSmart Define. 2015. "frivolous thesaurus" https://smartdefine.org/frivolous/thesaurus/synonyms (accessed September 27, 2026).
HarvardSmart Define 2015, frivolous thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/frivolous/thesaurus/synonyms>.
MLASmart Define. "frivolous thesaurus" 13 April 2015. Web. 27 September 2026. <https://smartdefine.org/frivolous/thesaurus/synonyms>