"crack-brained" meaning in English

{
  "forms": [
    {
      "form": "more crack-brained",
      "tags": [
        "comparative"
      ]
    },
    {
      "form": "most crack-brained",
      "tags": [
        "superlative"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "crack-brained (comparative more crack-brained, superlative most crack-brained)",
      "name": "en-adj"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "adj",
  "senses": [
    {
      "alt_of": [
        {
          "word": "crackbrained"
        }
      ],
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        }
      ],
      "examples": [
        {
          "ref": "1726 October 28, [Jonathan Swift], “A Further Account of Glubbdubdrib. […]”, in Travels into Several Remote Nations of the World. […] [Gulliver’s Travels], volume II, London: […] Benj[amin] Motte, […], →OCLC, part III (A Voyage to Laputa, Balnibarbi, Glubbdubdribb, Luggnagg, and Japan), page 108:",
          "text": "I could plainly diſcover from whence one Family derives a long Chin; why a ſecond hath abounded with Knaves for two Generations, and Fools for two more; why a third happened to be crack-brained, and a fourth to be Sharpers.",
          "type": "quote"
        }
      ],
      "glosses": [
        "Alternative form of crackbrained"
      ],
      "id": "en-crack-brained-en-adj-SIFNtra7",
      "links": [
        [
          "crackbrained",
          "crackbrained#English"
        ]
      ],
      "tags": [
        "alt-of",
        "alternative"
      ]
    }
  ],
  "word": "crack-brained"
}

{
  "forms": [
    {
      "form": "more crack-brained",
      "tags": [
        "comparative"
      ]
    },
    {
      "form": "most crack-brained",
      "tags": [
        "superlative"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "crack-brained (comparative more crack-brained, superlative most crack-brained)",
      "name": "en-adj"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "adj",
  "senses": [
    {
      "alt_of": [
        {
          "word": "crackbrained"
        }
      ],
      "categories": [
        "English adjectives",
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English terms with quotations",
        "Pages with 1 entry",
        "Pages with entries"
      ],
      "examples": [
        {
          "ref": "1726 October 28, [Jonathan Swift], “A Further Account of Glubbdubdrib. […]”, in Travels into Several Remote Nations of the World. […] [Gulliver’s Travels], volume II, London: […] Benj[amin] Motte, […], →OCLC, part III (A Voyage to Laputa, Balnibarbi, Glubbdubdribb, Luggnagg, and Japan), page 108:",
          "text": "I could plainly diſcover from whence one Family derives a long Chin; why a ſecond hath abounded with Knaves for two Generations, and Fools for two more; why a third happened to be crack-brained, and a fourth to be Sharpers.",
          "type": "quote"
        }
      ],
      "glosses": [
        "Alternative form of crackbrained"
      ],
      "links": [
        [
          "crackbrained",
          "crackbrained#English"
        ]
      ],
      "tags": [
        "alt-of",
        "alternative"
      ]
    }
  ],
  "word": "crack-brained"
}