What does featherbrained mean?
Featherbrained is an informal adjective describing someone who is silly, frivolous, and lacking in sound judgement — a person whose thoughts seem as light and insubstantial as a feather. It can also apply to things such as plans, schemes, or notions, marking them as impractical and unserious. The word belongs chiefly to conversational and literary English; it is vivid but slightly old-fashioned, evoking the drawing-room comedies of an earlier era where flighty heiresses and their hare-brained schemes were stock figures. Its connotations are gently mocking rather than harsh: to call someone featherbrained is to dismiss their reliability without accusing them of malice. Because it has often been aimed at women, modern writers may wish to use it with care. Related terms include scatterbrained, flighty, and giddy, each shading the criticism differently. Featherbrained endures because the image behind it — a head full of drifting feathers instead of solid thought — is instantly understood and hard to forget.
adjectiveSilly, frivolous, or lacking good sense and judgement; light-headed and scatterbrained in a way that suggests a mind as insubstantial as a feather.
- (of a person) silly, frivolous, and lacking sound judgement; not to be taken seriously.
- (of ideas, plans, or behaviour) frivolous, impractical, or lacking seriousness.
"Her featherbrained scheme to sail across the Atlantic in a rowing boat amused everyone at the club."
"The novel's heroine is a featherbrained socialite who slowly proves herself braver than anyone expected."
"He dismissed the proposal as another featherbrained notion dreamed up over too much wine."
Calling someone 'featherbrained' literally compares their mind to a bird's plumage — all fluff, no weight — which is why the insult manages to be dismissive and almost affectionate at once.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of featherbrained
Featherbrained is formed within English from the noun 'feather', from Old English 'feder' (related to Old Frisian 'federe' and other Germanic cognates), combined with the past participle 'brained'. The compound follows the pattern of similar formations like 'hare-brained', using 'brain' metaphorically to characterise a person's mental quality. Such compounds arose in English in roughly the early nineteenth century, when playful epithets built on body-part metaphors were common.
How featherbrained is actually used
Featherbrained is informal and slightly dated in flavour, though still readily understood. It often carries a mildly teasing or condescending tone, and has historically been applied disproportionately to women, so it can read as sexist if used carelessly. It frequently appears in fiction and light commentary rather than formal writing.
Easily confused with featherbrained
Light-headed usually describes temporary dizziness or faintness, while featherbrained describes a settled, frivolous lack of seriousness or good sense.