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Definition of featherbrain

featherbrain

/ˈfɛð.ɚˌbɹeɪn/
feath · er · brain

Plural:featherbrains
•
Adjective:featherbrained
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featherbrain Lexical Profile

featherbrain Game Scores & Validity

• noun

1

A foolish, scatterbrained, or frivolous person who lacks serious thought or concentration.

Example

"Only a complete featherbrain would forget to lock the front door before leaving on a two-week vacation."

Synonyms
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Antonyms
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Word Origin & Etymology

First recorded in the early 19th century, this English compound combines 'feather' and 'brain' to figuratively suggest a mind as light, insubstantial, and easily blown about as a feather.

Cite this Entry


Wordmom. (2026). Definition of Featherbrain. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/featherbrain
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