9 entries under silly topic. ×

2
stupid(dull, simple, careless, limited)
1
birdbrained(adjective, dull, simple, stupid)
1
dull(simple, careless, stupid, limited)
1
foolish(careless, stupid, unthinking, unintelligent)
1
inane(careless, stupid, unthinking, unintelligent)
1
mindless(careless, stupid, unthinking, unintelligent)
1
puerile(careless, stupid, unthinking, unintelligent)
1
vacuous(adjective, careless, stupid, empty)
1
witless(careless, stupid, unthinking, unintelligent)
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APASmart Define. (2015). lamebrained thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/lamebrained/thesaurus/synonyms
ChicagoSmart Define. 2015. "lamebrained thesaurus" https://smartdefine.org/lamebrained/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2015, lamebrained thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/lamebrained/thesaurus/synonyms>.
MLASmart Define. "lamebrained thesaurus" 14 April 2015. Web. 26 September 2026. <https://smartdefine.org/lamebrained/thesaurus/synonyms>