104 entries under adjective topic. ×

10
silly(foolish, crazy, zany)
9
foolish(silly, crazy, zany, wacky)
8
scatterbrained(noun, ignore, forget, vague)
7
crazy(silly, foolish, zany, wacky)
6
asinine
6
mad(silly, foolish, crazy, zany)
5
absurd(silly, foolish, crazy, laughing)
5
idiotic
5
irrational(silly, foolish, crazy, zany)
5
nonsensical
5
nutty(silly, foolish, crazy, zany)
5
stupid
5
wild(silly, foolish, crazy, zany)
4
imbecilic
4
insane(silly, foolish, crazy, zany)
4
ludicrous
4
moronic
4
reckless
4
ridiculous
4
screwy(silly, foolish, crazy, zany)
13 years ago|2.7k views|share |citing 
APASmart Define. (2013). hare-brained thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/hare-brained/thesaurus/synonyms
ChicagoSmart Define. 2013. "hare-brained thesaurus" https://smartdefine.org/hare-brained/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2013, hare-brained thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/hare-brained/thesaurus/synonyms>.
MLASmart Define. "hare-brained thesaurus" 19 May 2013. Web. 21 September 2026. <https://smartdefine.org/hare-brained/thesaurus/synonyms>