118 entries under silly topic. ×

5
raving(adjective, upset, wrong, foolish)
4
dippy(adjective, foolish, crazy, mad)
4
erratic(adjective, unusual, wild, strange)
4
odd(adjective, unusual, wild, strange)
4
schizophrenic(adjective, foolish, stupid, hacked)
4
senseless(foolish, stupid, unreasonable, unwise)
4
unsettled(adjective, foolish, stupid, hot)
3
bizarre(adjective, wrong, unusual, wild, strange)
3
eccentric(adjective, unusual, wild, strange)
3
flaky(adjective, foolish, crazy, mad)
3
goofy(adjective, strange, foolish, odd)
3
hare-brained(adjective, foolish, crazy, zany)
3
nutty as fruitcake(expression, idiom, foolish, mad)
3
psychopathic(adjective, foolish, stupid, irrational)
3
schizo(adjective, foolish, mad, insane)
3
screwball(adjective, foolish, crazy, mad)
3
strange(unusual, foolish, odd, unwise)
3
stupid(foolish, crazy, mad, unreasonable)
3
weird(unusual, strange, foolish, odd)
2
bats in the belfry(expression, idiom, foolish, mad)
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APASmart Define. (2015). demented thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/demented/thesaurus/synonyms
ChicagoSmart Define. 2015. "demented thesaurus" https://smartdefine.org/demented/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2015, demented thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/demented/thesaurus/synonyms>.
MLASmart Define. "demented thesaurus" 17 July 2015. Web. 25 September 2026. <https://smartdefine.org/demented/thesaurus/synonyms>