110 entries under silly topic. ×

1
deficient(adjective, dull, foolish, stupid)
1
double talk(expression, adjective, stupid, insignificant)
1
flaky(adjective, stupid, insignificant, unreasonable)
1
futile(adjective, dull, simple, slow)
1
ill-advised(adjective, dull, weak, simple)
1
ill-considered(adjective, weak, simple, foolish)
1
incautious(adjective, weak, simple, foolish)
1
incongruous(adjective, stupid, insignificant, unreasonable)
1
inconsistent(adjective, stupid, insignificant, unreasonable)
1
indiscreet(adjective, dull, weak, simple)
1
injudicious(adjective, weak, simple, foolish)
1
kooky(adjective, weak, simple, foolish)
1
mentally handicapped(expression, foolish, stupid)
1
nerdy(adjective, weak, simple, foolish)
1
oblivious(adjective, foolish, innocent, senseless)
1
puerile(adjective, dull, absurd, impractical)
1
purposeless(adjective, stupid, insignificant, senseless)
1
rash(adjective, dull, simple, slow)
1
reckless(thoughtless, unwise)
1
thick-headed(dull, foolish, stupid, unintelligent)
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APASmart Define. (2015). imbecilic thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/imbecilic/thesaurus/synonyms
ChicagoSmart Define. 2015. "imbecilic thesaurus" https://smartdefine.org/imbecilic/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2015, imbecilic thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/imbecilic/thesaurus/synonyms>.
MLASmart Define. "imbecilic thesaurus" 14 April 2015. Web. 26 September 2026. <https://smartdefine.org/imbecilic/thesaurus/synonyms>