Synonyms|686Antonyms|62|Broader|11Narrower|9Related|1.8k
2
mad as a March hare(expression, idiom, silly, foolish, mad)
2
mad as a hatter(expression, adjective, idiom, silly, foolish)
2
mentally strange(expression, silly, foolish, mad, insane)
2
neurotic(noun, adjective, crazy, mad, queer)
2
nutty as fruitcake(expression, idiom, silly, foolish, mad)
2
off-the-wall
2
off one's chump
2
off one's rocker(adjective, idiom, sane)
2
outlandish(adjective, silly, foolish, unwise)
2
outrageous(adjective, silly, foolish, unwise)
2
plagiarist
2
roll
2
scatterbrained
2
schizophrenic(noun, adjective, wrong, silly, foolish)
2
screw loose(expression, silly, foolish, mad, insane)
2
thickheaded
2
tomfool
2
twist
2
unsound(adjective, sane)
2
weird(adjective, silly, foolish, unwise)
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APASmart Define. (2016). cuckoo thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/cuckoo/thesaurus/synonyms
ChicagoSmart Define. 2016. "cuckoo thesaurus" https://smartdefine.org/cuckoo/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2016, cuckoo thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/cuckoo/thesaurus/synonyms>.
MLASmart Define. "cuckoo thesaurus" 30 March 2016. Web. 23 September 2026. <https://smartdefine.org/cuckoo/thesaurus/synonyms>