150 entries under foolish topic. ×

12
irrational(adjective, weak, simple, wild, strange)
12
moronic(adjective, dull, weak, simple, silly)
11
insane(adjective, weak, simple, silly)
11
weird(adjective, unusual, wild, strange)
10
nutty(adjective, light, weak, simple, wild)
10
illogical(adjective, silly, stupid, crazy)
9
derisory(adjective, silly, fantastic, absurd)
9
zany(adjective, weak, simple, silly)
8
fantastic(adjective, weak, simple, wild, strange)
8
unreasonable(adjective, weak, simple, silly)
7
cockeyed(adjective, silly, fantastic, crooked)
7
daft(adjective, weak, simple, wild, silly)
7
eccentric(adjective, strange, funny, fantastic)
7
imbecile(adjective, silly, stupid, unintelligent)
7
loony(adjective, light, stupid, crazy)
7
odd(adjective, wrong, false, wild, strange)
7
outrageous(adjective, terrible, wild, strange, silly)
6
dippy(adjective, light, simple, stupid)
6
frivolous
6
wacky(adjective, light, weak, simple, wild)
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APASmart Define. (2015). ludicrous thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/ludicrous/thesaurus/synonyms
ChicagoSmart Define. 2015. "ludicrous thesaurus" https://smartdefine.org/ludicrous/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2015, ludicrous thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/ludicrous/thesaurus/synonyms>.
MLASmart Define. "ludicrous thesaurus" 14 April 2015. Web. 24 September 2026. <https://smartdefine.org/ludicrous/thesaurus/synonyms>