featherbrain
C1/C2informal, humorous, mildly derogatory
Definition
Meaning
a foolish, scatterbrained, or silly person
a person who lacks seriousness, is flighty, or is incapable of serious thought; often implies light-hearted, harmless foolishness rather than malice
Linguistics
Semantic Notes
Suggests a mind as light and insubstantial as a feather; carries a connotation of frivolity and lack of intellectual weight. Often used affectionately or teasingly, especially for minor forgetfulness or silliness.
Dialectal Variation
British vs American Usage
Differences
Used in both varieties with no major structural differences. 'Featherbrained' (adj.) is equally common.
Connotations
Slightly more likely to be used in a gently mocking, affectionate tone in UK English. In US English, it can sometimes carry a slightly stronger implication of incompetence.
Frequency
Low frequency in both, but understood. Slightly more prevalent in UK English as a colourful colloquialism.
Vocabulary
Collocations
Grammar
Valency Patterns
You [verb: be] such a featherbrain.That [noun: featherbrain] forgot his keys again.Don't be a featherbrain.Vocabulary
Synonyms
Strong
Neutral
Weak
Vocabulary
Antonyms
Phrases
Idioms & Phrases
- “Not have a featherbrained idea (variant of 'not have the foggiest idea')”
- “Light as a featherbrain (play on 'light as a feather')”
Usage
Context Usage
Business
Highly inappropriate in formal business contexts. Might be used very informally among close colleagues: 'I played the featherbrain and sent the email to the wrong group.'
Academic
Not used.
Everyday
Primary context. Used in casual conversation, often teasingly: 'Oh, you featherbrain, you left the milk out!'
Technical
Not used.
Examples
By Part of Speech
verb
British English
- To featherbrain (verb) is not a standard form.
American English
- To featherbrain (verb) is not a standard form.
adverb
British English
- Featherbrainedly (extremely rare and non-standard).
American English
- Featherbrainedly (extremely rare and non-standard).
adjective
British English
- She's so featherbrained she booked tickets for the wrong month.
- His featherbrained scheme was never going to work.
American English
- That was a featherbrained thing to do, leaving the car unlocked.
- I had a featherbrained moment and poured orange juice on my cereal.
Examples
By CEFR Level
- My sister is a featherbrain. She forgets everything!
- Don't listen to him, he's a bit of a featherbrain when it comes to important dates.
- Despite her featherbrained reputation, she's actually quite sharp in meetings.
- The minister dismissed the backbench proposal as a featherbrained notion unworthy of parliamentary time.
Learning
Memory Aids
Mnemonic
Imagine a person's head filled with feathers instead of a brain. The thoughts are light, float away easily, and provide no solid substance—just like a featherbrain's ideas.
Conceptual Metaphor
MIND IS A SUBSTANCE (a light, insubstantial one). STUPIDITY IS LIGHTNESS / LACK OF DENSITY.
Watch out
Common Pitfalls
Translation Traps (for Russian speakers)
- Avoid direct translation to 'перьевой мозг' – this is nonsensical. The concept is closer to 'ветер в голове' (wind in the head), 'безмозглый' (brainless, but harsher), or 'разиня' (scatterbrain).
- The '-brain' part refers to the person, not the organ. It means 'a person with a feather for a brain'.
Common Mistakes
- Misspelling as 'feather brain' (two words). While sometimes seen, the closed compound 'featherbrain' is standard for the noun.
- Using it in formal writing or situations requiring respect.
- Confusing it with 'birdbrain', which is more directly insulting.
Practice
Quiz
In which context would calling someone a 'featherbrain' be LEAST appropriate?
FAQ
Frequently Asked Questions
No, it's generally mild and often used humorously or affectionately. It suggests harmless silliness rather than deep stupidity or malice.
They are very close synonyms. 'Scatterbrain' emphasizes disorganization and forgetfulness, while 'featherbrain' emphasizes a lack of serious, weighty thought. They are often interchangeable.
Yes, it is not gender-specific. However, historically it was more frequently applied to women, so modern usage should be mindful of this potentially dated connotation.
They are both low-frequency terms. 'Featherbrained' might be slightly more common as it can describe actions or ideas ('a featherbrained scheme'), not just people.