174 entries under foolish topic. ×

6
nuts(adjective, simple, silly, unsound)
6
outlandish(adjective, silly, absurd, unwise)
6
puerile(adjective, dull, silly, stupid)
6
wacky(adjective, wild, silly, stupid)
6
witless(adjective, dull, simple, slow, careless)
5
blockheaded(adjective, impractical, half-baked, doomed)
5
crackpot(adjective, impractical, half-baked, doomed)
5
cuckoo(adjective, silly, unwise)
5
dopey(adjective, dull, simple, silly)
5
dull(adjective, weak, simple, careless, silly)
5
zany(adjective, silly, unwise)
4
batty(adjective, wild, silly, stupid)
4
bizarre(adjective, careless, strange, stupid)
4
childish(adjective, silly, stupid, absurd)
4
cretinous
4
dippy(adjective, strange, silly, stupid)
4
doltish(adjective, dull, careless, silly)
4
harebrained(adjective, careless, silly, stupid)
4
imprudent(adjective, careless, silly, stupid)
4
jackass
11 years ago|14k views|share |citing 
APASmart Define. (2015). inane thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/inane/thesaurus/synonyms
ChicagoSmart Define. 2015. "inane thesaurus" https://smartdefine.org/inane/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2015, inane thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/inane/thesaurus/synonyms>.
MLASmart Define. "inane thesaurus" 13 April 2015. Web. 25 September 2026. <https://smartdefine.org/inane/thesaurus/synonyms>