- Definitions|1
- Thesaurus|1k
- Abbreviations|0
59 entries under adjective topic. ×
| faint | |
| fickle(careless, foolish, unstable, faint) | |
| zany | |
| absurd | |
| apish | |
| asinine | |
| bubbleheaded(careless, unstable, unreliable, changeable) | |
| careless(wild, stupid, vague, unthinking) | |
| changeable(careless, wild, foolish, stupid) | |
| ditzy(careless, inconstant, giddy) | |
| fair | |
| flippant | |
| inane | |
| inconstant(careless, unstable, unreliable, changeable) | |
| lighthearted | |
| preposterous | |
| ridiculous | |
| sappy | |
| slaphappy | |
| unreasonable |
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| APA | Smart Define. (2015). featherbrained thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/featherbrained/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "featherbrained thesaurus" https://smartdefine.org/featherbrained/thesaurus/synonyms (accessed September 24, 2026). |
| Harvard | Smart Define 2015, featherbrained thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/featherbrained/thesaurus/synonyms>. |
| MLA | Smart Define. "featherbrained thesaurus" 14 April 2015. Web. 24 September 2026. <https://smartdefine.org/featherbrained/thesaurus/synonyms> |