| nutty as fruitcake(expression, idiom, unglued, well-built, potty) | |
| of unsound mind(expression, idiom, unglued, well-built, potty) | |
| out to lunch(expression, idiom, unglued, well-built, potty) | |
| ox | |
| popular food fish(expression, idiom) | |
| potty(unglued, well-built) | |
| powerhouse | |
| prickly pear cactus(expression, idiom) | |
| rocker | |
| rocklike | |
| round the bend(expression, idiom, unglued, well-built, potty) | |
| salad type | |
| saltwater fish(expression, idiom) | |
| sandwich option | |
| schizo(unglued, well-built, potty) | |
| schizzo(unglued, well-built, potty) | |
| scombroid fish(expression, idiom) | |
| screw loose(expression, unglued, well-built, potty) | |
| solid | |
| sprightly |
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| APA | Smart Define. (2015). tuna thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/tuna/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "tuna thesaurus" https://smartdefine.org/tuna/thesaurus/synonyms (accessed September 24, 2026). |
| Harvard | Smart Define 2015, tuna thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/tuna/thesaurus/synonyms>. |
| MLA | Smart Define. "tuna thesaurus" 10 April 2015. Web. 24 September 2026. <https://smartdefine.org/tuna/thesaurus/synonyms> |