30 entries under cuckoo topic. ×

8
barmy(adjective, silly, foolish, mad, insane)
8
bonkers(adjective, silly, foolish, mad, insane)
7
fruity(adjective, silly, foolish, mad, insane)
3
potty(adjective, wild, silly, foolish, mad)
2
bats in the belfry(expression, adjective, idiom, wild, silly)
2
flaky(adjective, silly, foolish, mad, insane)
2
flipped(adjective, silly, foolish, mad, insane)
2
mad as a March hare(expression, adjective, idiom, wild, silly)
2
mad as a hatter(expression, adjective, idiom, wild, silly)
2
nutty as fruitcake(expression, adjective, idiom, wild, silly)
2
of unsound mind(expression, adjective, idiom, wild, silly)
2
out to lunch(expression, adjective, idiom, wild, silly)
2
schizo(adjective, wild, silly, foolish, mad)
2
screw loose(expression, adjective, wild, silly, foolish)
2
screwball(adjective, silly, foolish, mad, insane)
2
screwy(adjective, silly, foolish, mad, insane)
2
unglued(adjective, wild, silly, foolish, mad)
1
ape(adjective, silly, foolish, mad, insane)
1
berserk(adjective, silly, foolish, mad, insane)
1
delirious(adjective, silly, foolish, mad, insane)
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APASmart Define. (2015). round the bend thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/round_the_bend/thesaurus/synonyms
ChicagoSmart Define. 2015. "round the bend thesaurus" https://smartdefine.org/round_the_bend/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2015, round the bend thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/round_the_bend/thesaurus/synonyms>.
MLASmart Define. "round the bend thesaurus" 10 April 2015. Web. 28 September 2026. <https://smartdefine.org/round_the_bend/thesaurus/synonyms>