Definitions

from The Century Dictionary.

  • noun A rash or hot-headed person; a harebrained person.
  • Harebrained; hot-headed; rash.

from the GNU version of the Collaborative International Dictionary of English.

  • adjective Hot-headed; rash.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun archaic A rash or hotheaded person.

Etymologies

from Wiktionary, Creative Commons Attribution/Share-Alike License

mad +‎ brain

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Examples

  • Colonel Halkett gave up his daughter for lost when she did not appear at the breakfast-table: for yet more decidedly lost when the luncheon saw her empty place; and as time drew on toward the dinner-hour, he began to think her lost beyond hope, embarked for good and all with the madbrain.

    Beauchamp's Career — Complete George Meredith 1868

  • Colonel Halkett gave up his daughter for lost when she did not appear at the breakfast-table: for yet more decidedly lost when the luncheon saw her empty place; and as time drew on toward the dinner-hour, he began to think her lost beyond hope, embarked for good and all with the madbrain.

    Complete Project Gutenberg Works of George Meredith George Meredith 1868

  • Colonel Halkett gave up his daughter for lost when she did not appear at the breakfast-table: for yet more decidedly lost when the luncheon saw her empty place; and as time drew on toward the dinner-hour, he began to think her lost beyond hope, embarked for good and all with the madbrain.

    Beauchamp's Career — Volume 5 George Meredith 1868

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