154 entries under adjective topic. ×

1
lame-brained
1
maniacal(silly, foolish, unwise)
1
meat-headed
1
mentally ill(expression, idiom)
1
merry
1
meshuga
1
non compos mentis
1
of unsound mind(expression, idiom, silly, foolish)
1
off one's chump
1
playful
1
risible
1
slapstick
1
vacuous
0
deplorable
0
doolally
0
exorbitant
0
extravagant
0
flaked-out
0
frolicsome
0
immoderate
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APASmart Define. (2016). goofy thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/goofy/thesaurus/synonyms
ChicagoSmart Define. 2016. "goofy thesaurus" https://smartdefine.org/goofy/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2016, goofy thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/goofy/thesaurus/synonyms>.
MLASmart Define. "goofy thesaurus" 24 March 2016. Web. 28 September 2026. <https://smartdefine.org/goofy/thesaurus/synonyms>