104 entries under foolish topic. ×

1
headstrong(adjective, wrong, passionate, stupid)
1
idiotic(silly, mad, insane, unwise)
1
inane(silly, unwise)
1
ludicrous(silly, unwise)
1
lunatic(adjective, wild, silly, crazy)
1
maniacal(silly, mad, insane, unwise)
1
mental(silly, mad, insane, unwise)
1
moonstruck(silly, mad, insane, unwise)
1
nonsensical(silly, stupid, senseless, irrational)
1
off the wall(expression, adjective, idiom, unusual, strange)
1
opinionated(adjective, wrong, violent, stupid)
1
preposterous(adjective, wrong, wild, strange, silly)
1
ridiculous(unusual, strange, silly, unwise)
1
schizo(silly, mad, insane, unwise)
1
stupid(silly, senseless, irrational, unwise)
1
thoughtless(stupid, senseless, unreliable, irrational)
1
touched(unusual, strange, silly, mad)
1
unglued(silly, mad, unstable, insane)
1
unhinged(unusual, strange, silly, mad)
1
unreasoned(adjective, stupid, senseless, irrational)
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APASmart Define. (2016). erratic thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/erratic/thesaurus/synonyms
ChicagoSmart Define. 2016. "erratic thesaurus" https://smartdefine.org/erratic/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2016, erratic thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/erratic/thesaurus/synonyms>.
MLASmart Define. "erratic thesaurus" 26 February 2016. Web. 23 September 2026. <https://smartdefine.org/erratic/thesaurus/synonyms>