96 entries under stupid topic. ×

4
rash(adjective, dull, careless, silly, foolish)
4
undiscerning(adjective, careless, unthinking, obtuse)
4
unintellectual(adjective, simple, slow, boring)
4
unreasonable(adjective, weak, simple, careless, silly)
3
addled(adjective, simple, slow, boring)
3
ill-advised(adjective, dull, weak, simple, careless)
3
pointless(adjective, dull, silly, foolish)
3
shallow(adjective, simple, slow, silly)
3
simple-minded(adjective, simple, slow, silly, foolish)
3
slow(adjective, dull, simple, silly, foolish)
3
stolid(adjective, dull, simple, slow, foolish)
2
besotted(adjective, simple, slow, boring)
2
confused(careless, unthinking, obtuse, unperceptive)
2
credulous(adjective, silly, green, fat)
2
deficient(adjective, dull, silly, foolish)
2
deranged(simple, silly, foolish, unsound)
2
imprudent(weak, simple, careless, silly, foolish)
2
inept(careless, foolish, rash, risky)
2
injudicious(weak, simple, careless, silly, foolish)
2
mentally deficient(expression, silly, foolish)
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APASmart Define. (2015). witless thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/witless/thesaurus/synonyms
ChicagoSmart Define. 2015. "witless thesaurus" https://smartdefine.org/witless/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2015, witless thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/witless/thesaurus/synonyms>.
MLASmart Define. "witless thesaurus" 10 April 2015. Web. 23 September 2026. <https://smartdefine.org/witless/thesaurus/synonyms>