Usually means: Recklessly impulsive, foolishly rash behavior.
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We found 9 dictionaries that define the word madbrained:

General (9 matching dictionaries)
  1. madbrained: Wordnik
  2. madbrained: Wiktionary
  3. Madbrained: Dictionary.com
  4. Madbrained: Online Plain Text English Dictionary
  5. madbrained: Webster's Revised Unabridged, 1913 Edition
  6. Madbrained: AllWords.com Multi-Lingual Dictionary
  7. madbrained: Webster's 1828 Dictionary
  8. madbrained: FreeDictionary.org
  9. Madbrained: TheFreeDictionary.com

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Definitions from Wiktionary (madbrained)

▸ adjective:  madcap; crazy

Similar:
addlebrained, addle-brained, harebrained, scatterbrained, cockbrained, rattlebrained, birdbrained, rattlepated, pin-brained, looseheaded, more...

Opposite:
sensible, rational, level-headed, logical

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Similar:
addlebrained, addle-brained, harebrained, scatterbrained, cockbrained, rattlebrained, birdbrained, rattlepated, pin-brained, looseheaded, more...

Opposite:
sensible, rational, level-headed, logical



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