"birdbrained" meaning in English

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "bird",
        "3": "brained"
      },
      "expansion": "bird + brained",
      "name": "compound"
    }
  ],
  "etymology_text": "From bird + brained.",
  "forms": [
    {
      "form": "more birdbrained",
      "tags": [
        "comparative"
      ]
    },
    {
      "form": "most birdbrained",
      "tags": [
        "superlative"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "birdbrained (comparative more birdbrained, superlative most birdbrained)",
      "name": "en-adj"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "adj",
  "senses": [
    {
      "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"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Personality",
          "orig": "en:Personality",
          "parents": [
            "Mind",
            "Human",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "silly and frivolous; empty-headed"
      ],
      "id": "en-birdbrained-en-adj-19muCvVH",
      "links": [
        [
          "silly",
          "silly"
        ],
        [
          "frivolous",
          "frivolous"
        ],
        [
          "empty-headed",
          "empty-headed"
        ]
      ]
    }
  ],
  "word": "birdbrained"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "bird",
        "3": "brained"
      },
      "expansion": "bird + brained",
      "name": "compound"
    }
  ],
  "etymology_text": "From bird + brained.",
  "forms": [
    {
      "form": "more birdbrained",
      "tags": [
        "comparative"
      ]
    },
    {
      "form": "most birdbrained",
      "tags": [
        "superlative"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "birdbrained (comparative more birdbrained, superlative most birdbrained)",
      "name": "en-adj"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "adj",
  "senses": [
    {
      "categories": [
        "English adjectives",
        "English compound terms",
        "English entries with incorrect language header",
        "English lemmas",
        "Pages with 1 entry",
        "Pages with entries",
        "en:Personality"
      ],
      "glosses": [
        "silly and frivolous; empty-headed"
      ],
      "links": [
        [
          "silly",
          "silly"
        ],
        [
          "frivolous",
          "frivolous"
        ],
        [
          "empty-headed",
          "empty-headed"
        ]
      ]
    }
  ],
  "word": "birdbrained"
}