1
kookie
1
lame-brained(adjective, foolish)
1
maniacal(adjective, silly, foolish, unwise)
1
meat-headed(adjective, foolish)
1
mentally ill(expression, adjective, idiom)
1
merry
1
meshuga
1
non compos mentis
1
obtuse
1
odd(strange, silly, foolish, crazy, fantastic)
1
of unsound mind(expression, adjective, idiom, silly, foolish)
1
off one's chump
1
off the hinges(expression, idiom)
1
off the track(expression, idiom)
1
off the wall(expression, idiom)
1
out of all reason(expression, idiom, silly, foolish, fantastic)
1
outrageous(silly, foolish, fantastic, unwise, half-baked)
1
peculiar(strange, silly, foolish, crazy, fantastic)
1
playful
1
quixotic(silly, foolish, fantastic, unwise, impractical)
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APASmart Define. (2016). goofy thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/goofy/thesaurus/synonyms
ChicagoSmart Define. 2016. "goofy thesaurus" https://smartdefine.org/goofy/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2016, goofy thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/goofy/thesaurus/synonyms>.
MLASmart Define. "goofy thesaurus" 24 March 2016. Web. 25 September 2026. <https://smartdefine.org/goofy/thesaurus/synonyms>