Usually means: Ill-conceived, foolish, poorly thought out.
Definitions Related words Mentions History
We found 15 dictionaries that define the word hairbrained:

General (14 matching dictionaries)
  1. hairbrained: Merriam-Webster
  2. hairbrained: American Heritage Dictionary of the English Language
  3. hairbrained: Collins English Dictionary
  4. hairbrained: Wordnik
  5. hairbrained: Wiktionary
  6. hairbrained: Webster's New World College Dictionary, 4th Ed.
  7. hairbrained: Infoplease Dictionary
  8. Hairbrained, hairbrained: Dictionary.com
  9. Hairbrained: Online Plain Text English Dictionary
  10. hairbrained: Webster's Revised Unabridged, 1913 Edition
  11. Hairbrained: AllWords.com Multi-Lingual Dictionary
  12. hairbrained: FreeDictionary.org
  13. hairbrained: TheFreeDictionary.com
  14. Hairbrained: World Wide Words

Slang (1 matching dictionary)
  1. hairbrained: Urban Dictionary

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Definitions from Wiktionary (Hairbrained)

▸ adjective:  Misspelling of harebrained. [(of an idea or plan etc) Absurd, foolish or stupid.]

Similar:
bearheaded, bizzare, genious, frivilous, ingenius, assinine, hebrephrenic, krazy, dimented, skiddish, more...

Opposite:
sensible, rational, logical, practical

▸ Words similar to hairbrained

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▸ Wikipedia articles (New!)

▸ Popular nouns described by hairbrained

▸ Words that often appear near hairbrained

▸ Rhymes of hairbrained

▸ Invented words related to hairbrained

Similar:
bearheaded, bizzare, genious, frivilous, ingenius, assinine, hebrephrenic, krazy, dimented, skiddish, more...

Opposite:
sensible, rational, logical, practical



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