281 entries under foolish topic. ×

11
dumb(adjective, stupid, crazy, vague)
11
zany(adjective, weak, simple, knowledge, ability)
10
hare-brained(adjective, crazy, zany)
9
batty(adjective, light, wild, stupid)
9
shallow(adjective, slight, detail, small)
9
nuts(adjective, wild, stupid, crazy)
9
screwy(adjective, light, wild, stupid)
8
cockamamie(adjective, weak, simple, crazy)
8
cockamamy(adjective, thoughtless, unwise, unintelligent)
8
dopey(adjective, simple, knowledge, slang, ability)
8
reckless(adjective, careless, stupid, crazy)
7
dotty(adjective, weak, simple, stupid)
7
inept(adjective, careless, stupid, rash)
7
outlandish(adjective, ridiculous, absurd, unwise)
7
rash(adjective, careless, stupid, crazy)
7
superficial(adjective, slight, detail, stupid)
6
cuckoo(adjective, stupid, crazy, mad)
6
daffy(adjective, simple, stupid, crazy)
6
half-baked(adjective, simple, slight, detail)
6
kooky(adjective, weak, simple, crazy)
10 years ago|39k views|share |citing 
APASmart Define. (2016). silly thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/silly/thesaurus/synonyms
ChicagoSmart Define. 2016. "silly thesaurus" https://smartdefine.org/silly/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2016, silly thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/silly/thesaurus/synonyms>.
MLASmart Define. "silly thesaurus" 20 January 2016. Web. 23 September 2026. <https://smartdefine.org/silly/thesaurus/synonyms>