Synonyms|301Antonyms|16|Broader|0Narrower|0Related|110

87 entries under silly topic. ×

9
unhinged(adjective, crazy, mad, insane)
8
of unsound mind(expression, adjective, idiom, mad)
7
crazed(adjective, wild, foolish, crazy)
7
goofy(adjective, foolish, unwise)
7
potty(adjective, foolish, mad, insane)
6
maniacal(adjective, crazy, mad, insane)
6
out to lunch(expression, adjective, idiom, mad)
5
moonstruck(adjective, foolish, mad, insane)
4
eccentric(adjective, foolish, crazy, mad)
3
flaky(adjective, simple, foolish, crazy)
3
foolish(adjective, simple, crazy, mad)
3
inane(adjective, simple, foolish, unsound)
3
psycho(foolish, crazy, mad, insane)
3
ridiculous(adjective, simple, foolish, unsound)
3
screwball(adjective, foolish, crazy, mad)
2
absurd(adjective, simple, foolish, crazy)
2
bats in the belfry(expression, idiom, foolish, mad)
2
berserk(adjective, wild, foolish, crazy)
2
delirious(adjective, foolish, crazy, mad)
2
fatuous(adjective, foolish, unwise)
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ChicagoSmart Define. 2015. "bonkers thesaurus" https://smartdefine.org/bonkers/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2015, bonkers thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/bonkers/thesaurus/synonyms>.
MLASmart Define. "bonkers thesaurus" 10 April 2015. Web. 28 September 2026. <https://smartdefine.org/bonkers/thesaurus/synonyms>