466 entries under adjective topic. ×

22
witless(characteristic, dull, weak, simple)
22
fool(noun, person, light, simple)
22
frivolous(characteristic, slight, ability, detail)
21
daft(characteristic, weak, simple, wild)
21
pointless(characteristic, foolish, stupid, insignificant)
20
dippy(characteristic, knowledge, slang, ability)
20
imbecilic(weak, simple, knowledge, ability)
20
unreasonable(characteristic, weak, simple, wrong)
20
meaningless(characteristic, slight, foolish, stupid)
19
laughable(characteristic, amusement, ridiculous, laughableness)
19
empty-headed(characteristic, slight, ability, foolish)
19
flighty(characteristic, ability, foolish, stupid)
19
moronic(weak, simple, knowledge, ability)
18
childish(characteristic, foolish, innocent, trivial)
18
giddy(characteristic, ability, stupidity, foolishness)
18
unwise(characteristic, weak, simple, wrong)
17
irresponsible(characteristic, foolish, stupid, fantastic)
17
mindless(characteristic, dull, wrong, ability)
17
simple(noun, characteristic, weak, slight)
17
vacuous(characteristic, informal, careless, indifferent)
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APASmart Define. (2016). silly thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/silly/thesaurus/synonyms
ChicagoSmart Define. 2016. "silly thesaurus" https://smartdefine.org/silly/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2016, silly thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/silly/thesaurus/synonyms>.
MLASmart Define. "silly thesaurus" 20 January 2016. Web. 23 September 2026. <https://smartdefine.org/silly/thesaurus/synonyms>