144 entries under silly topic. ×

4
inexpert(adjective, stupid, coarse, natural)
4
nitwitted(adjective, foolish, stupid, intelligent)
4
unimportant(adjective, lower, obscure, poor)
3
daft(adjective, weak, slow, foolish)
3
dimwitted(adjective, dull, stupid, intelligent)
3
dotty(adjective, weak, foolish, thoughtless)
3
feeble(adjective, stupid, intelligent, fat)
3
insensate(adjective, dull, slow, foolish)
3
mooncalf(noun, ability, fool, innocent)
3
ninny(noun, ability, fool, innocent)
3
puerile(dull, slight, trivial, unintelligent)
3
schmo(noun, slang, ability, fool)
3
softhead(noun, ability, fool, innocent)
2
careless(adjective, foolish, senseless, artless)
2
crazy(adjective, weak, foolish, stupid)
2
daffy(adjective, weak, slow, foolish)
2
dunderhead(noun, fool, innocent, imbecile)
2
fat(adjective, stupid, intelligent, thick)
2
forgetful(adjective, foolish, senseless, unnecessary)
2
goose(noun, ability, informal, fool)
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APASmart Define. (2016). simple thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/simple/thesaurus/synonyms
ChicagoSmart Define. 2016. "simple thesaurus" https://smartdefine.org/simple/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2016, simple thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/simple/thesaurus/synonyms>.
MLASmart Define. "simple thesaurus" 29 March 2016. Web. 21 September 2026. <https://smartdefine.org/simple/thesaurus/synonyms>