- Definitions|1
- Thesaurus|1k
- Abbreviations|0
| grievous | |
| gross | |
| hard | |
| hare-brained | |
| harebrained(impulsive, impractical, half-baked, doomed, unplanned) | |
| hefty | |
| ill-conceived(impulsive, impractical, half-baked, doomed, unplanned) | |
| ill-judged(impractical, half-baked, doomed) | |
| impracticable(impractical, half-baked, doomed) | |
| impractical(impulsive, half-baked, doomed, unplanned, ill-considered) | |
| imprudent(impractical, half-baked, doomed) | |
| inappropriate(impractical, half-baked, doomed) | |
| indiscreet(impulsive, impractical, half-baked, doomed, unplanned) | |
| irresponsible(impractical, half-baked, doomed) | |
| light-headed | |
| loutish | |
| ludicrous(silly, impractical, unintelligent, unaware, half-baked) | |
| mentally defective | |
| muddle-headed | |
| not thin(expression, idiom) |
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| APA | Smart Define. (2015). boneheaded thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/boneheaded/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "boneheaded thesaurus" https://smartdefine.org/boneheaded/thesaurus/synonyms (accessed September 21, 2026). |
| Harvard | Smart Define 2015, boneheaded thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/boneheaded/thesaurus/synonyms>. |
| MLA | Smart Define. "boneheaded thesaurus" 14 April 2015. Web. 21 September 2026. <https://smartdefine.org/boneheaded/thesaurus/synonyms> |