150 entries under silly topic. ×

13
nutty(adjective, weak, simple, wild)
12
delirious(adjective, wild, foolish, hot)
12
ludicrous(adjective, weak, simple, wild, strange)
12
thoughtless(adjective, wrong, careless, wild)
11
unwise(adjective, weak, simple, wild)
10
crazed(adjective, violent, wild, foolish)
10
deranged(adjective, wild, foolish, stupid)
10
frenzied(adjective, wrong, violent, careless, wild)
10
raving(adjective, wrong, wild, foolish)
9
imbecilic(adjective, weak, simple, foolish)
9
incongruous(adjective, foolish, stupid, insignificant)
9
lunatic(adjective, weak, simple, wild)
9
wacky(adjective, weak, simple, informal, unusual)
8
batty(adjective, wild, foolish, stupid)
8
daft(adjective, weak, simple, wild)
8
moronic(adjective, weak, simple, foolish)
7
berserk(adjective, rough, wild, foolish)
7
ill-advised(weak, simple, careless, foolish)
7
imprudent(adjective, weak, simple, severe, harsh)
7
loony(adjective, weak, simple, careless, wild)
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APASmart Define. (2015). irrational thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/irrational/thesaurus/synonyms
ChicagoSmart Define. 2015. "irrational thesaurus" https://smartdefine.org/irrational/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2015, irrational thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/irrational/thesaurus/synonyms>.
MLASmart Define. "irrational thesaurus" 10 April 2015. Web. 24 September 2026. <https://smartdefine.org/irrational/thesaurus/synonyms>