- Definitions|2
- Thesaurus|2.6k
- Abbreviations|0
104 entries under silly topic. ×
| nonsensical(adjective, foolish, unwise) | |
| out to lunch(expression, adjective, idiom, mad) | |
| psychotic(noun, adjective, foolish, stupid) | |
| ridiculous(adjective, foolish, stupid, unwise) | |
| round the bend(expression, idiom, foolish, mad) | |
| unhinged(adjective, foolish, stupid, crazy) | |
| absurd(adjective, foolish, unwise) | |
| ludicrous(adjective, foolish, unwise) | |
| moonstruck(adjective, foolish, stupid, mad) | |
| schizo(noun, adjective, slang, mad) | |
| senseless(adjective, foolish, stupid, unwise) | |
| cockeyed(adjective, foolish, unwise) | |
| delirious(adjective, foolish, crazy, mad) | |
| flaky(adjective, foolish, crazy, mad) | |
| half-baked(foolish, unwise) | |
| unreasonable(adjective, foolish, stupid) | |
| unwise(adjective, foolish) | |
| bats in the belfry(expression, idiom, foolish, mad) | |
| berserk(adjective, foolish, crazy, mad) | |
| bizarre(adjective, wrong, wild, foolish) |
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| APA | Smart Define. (2016). cuckoo thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/cuckoo/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "cuckoo thesaurus" https://smartdefine.org/cuckoo/thesaurus/synonyms (accessed September 25, 2026). |
| Harvard | Smart Define 2016, cuckoo thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/cuckoo/thesaurus/synonyms>. |
| MLA | Smart Define. "cuckoo thesaurus" 30 March 2016. Web. 25 September 2026. <https://smartdefine.org/cuckoo/thesaurus/synonyms> |