5
flaky(adjective, light, wrong, unusual, wild)
5
fool
5
freaky(adjective, characteristic, person, light, strange)
5
funny(adjective, light, unusual, strange, silly)
5
harebrained(adjective, weak, simple, knowledge, ability)
5
of unsound mind(expression, adjective, idiom, silly, mad)
5
off-the-wall(adjective, crazy, mad, odd, insane)
5
psycho(noun, silly, foolish, crazy, mad)
5
strange(adjective, unusual, silly, foolish, odd)
5
twisted(adjective, crazy, mad, odd, insane)
5
unreasonable(adjective, weak, simple, wrong, silly)
5
whimsical(adjective, characteristic, person, behavior)
4
bughouse
4
delirious(adjective, crazy, mad, odd, insane)
4
dopey(adjective, knowledge, slang, ability)
4
dumb
4
fatuitous
4
hare-brained(adjective, silly, crazy, funny, zany)
4
jerky(adjective, light, knowledge, slang, ability)
4
kinky(unusual, strange, odd, absurd, weird)
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APASmart Define. (2016). wacky thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/wacky/thesaurus/synonyms
ChicagoSmart Define. 2016. "wacky thesaurus" https://smartdefine.org/wacky/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2016, wacky thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/wacky/thesaurus/synonyms>.
MLASmart Define. "wacky thesaurus" 31 March 2016. Web. 23 September 2026. <https://smartdefine.org/wacky/thesaurus/synonyms>