Word.ws English Dictionary

hairbrain

hairbrain is the alternative form of harebrain.

Meaning of harebrain

Noun

harebrain (plural harebrains)

  1. A person who lacks good sense; one who is foolish and reckless.
    • ...rash harebrain treating matters that require age and gravity;1872, Thomas Carlyle, Critical and Miscellaneous Essays - Volume 3, page 452

Forms of hairbrain

pluralhairbrains

Questions about hairbrain

What is hairbrain the alternative form of?
Hairbrain is the alternative form of harebrain.

Words near hairbrain in the dictionary

  1. hairbird
  2. hairbirds
  3. hairbow
  4. hairbowed
  5. hairbows
  6. hairbrain
  7. hairbrained
  8. hairbrains
  9. hairbreadth
  10. hairbreadths
  11. hairbrush

Source and license

Adapted from Wiktionary: hairbrain (page history and authors); harebrain (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

Last updated:

Cite this entry: “hairbrain.” Word.ws, https://word.ws/hairbrain. Based on Wiktionary, CC BY-SA 4.0.