- Definitions|2
- Thesaurus|2.6k
- Abbreviations|0
146 entries under adjective topic. ×
| risible | |
| unreasonable(silly, foolish, stupid) | |
| unwise(silly, foolish) | |
| around the bend(expression, idiom, confused, insane) | |
| berserk(silly, foolish, crazy, mad) | |
| bizarre(wrong, wild, silly, foolish) | |
| dumb | |
| frenzied(wrong, silly, foolish, stupid) | |
| imbecilic | |
| irresponsible(wrong, wild, silly, foolish) | |
| luny(noun, slang, sick, mad person) | |
| mad as a hatter(expression, idiom, silly, foolish) | |
| neurotic(noun, crazy, mad, queer) | |
| off-the-wall | |
| off one's chump | |
| off one's rocker(idiom, sane) | |
| outlandish(silly, foolish, unwise) | |
| outrageous(silly, foolish, unwise) | |
| schizophrenic(noun, wrong, silly, foolish) | |
| unsound |
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| APA | Smart Define. (2016). cuckoo thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/cuckoo/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "cuckoo thesaurus" https://smartdefine.org/cuckoo/thesaurus/synonyms (accessed September 26, 2026). |
| Harvard | Smart Define 2016, cuckoo thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/cuckoo/thesaurus/synonyms>. |
| MLA | Smart Define. "cuckoo thesaurus" 30 March 2016. Web. 26 September 2026. <https://smartdefine.org/cuckoo/thesaurus/synonyms> |