86 entries under silly topic. ×

1
unworkable(foolish, fantastic, unwise, impractical)
0
acting crazy(expression, adjective, foolish, crazy)
0
ape(foolish, unwise)
0
bats in the belfry(expression, idiom, foolish, unwise)
0
batty(foolish, unwise, impractical, eccentric)
0
berserk(foolish, unwise)
0
bonkers(foolish, unwise)
0
cuckoo(foolish, unwise)
0
dingy(foolish, unwise)
0
dippy(foolish, unwise)
0
flipped(foolish, unwise)
0
flipped out(expression, foolish, unwise)
0
fruity(foolish, unwise)
0
hare-brained(adjective, foolish, crazy, zany)
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mad as a March hare(expression, idiom, foolish, unwise)
0
mad as a hatter(expression, idiom, foolish, unwise)
0
maniacal(foolish, unwise)
0
mentally strange(expression, foolish, unwise)
0
potty(adjective, wild, foolish, stupid)
0
round the bend(expression, idiom, foolish, unwise)
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APASmart Define. (2016). odd thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/odd/thesaurus/synonyms
ChicagoSmart Define. 2016. "odd thesaurus" https://smartdefine.org/odd/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2016, odd thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/odd/thesaurus/synonyms>.
MLASmart Define. "odd thesaurus" 30 March 2016. Web. 23 September 2026. <https://smartdefine.org/odd/thesaurus/synonyms>