"希代" meaning in 日本語

{
  "categories": [
    {
      "kind": "other",
      "name": "同音書きかえ",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "日本語",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "日本語_名詞",
      "parents": [],
      "source": "w"
    }
  ],
  "forms": [
    {
      "form": "きだい"
    },
    {
      "form": "きたい"
    },
    {
      "form": "「稀代」の「同音の漢字による書きかえ」"
    }
  ],
  "lang": "日本語",
  "lang_code": "ja",
  "pos": "noun",
  "pos_title": "名詞",
  "senses": [
    {
      "glosses": [
        "世にも希なこと。"
      ],
      "id": "ja-希代-ja-noun-K~kmT5-b"
    },
    {
      "glosses": [
        "不思議なこと。"
      ],
      "id": "ja-希代-ja-noun-Lrx4vh3u"
    }
  ],
  "word": "希代"
}

{
  "categories": [
    "同音書きかえ",
    "日本語",
    "日本語_名詞"
  ],
  "forms": [
    {
      "form": "きだい"
    },
    {
      "form": "きたい"
    },
    {
      "form": "「稀代」の「同音の漢字による書きかえ」"
    }
  ],
  "lang": "日本語",
  "lang_code": "ja",
  "pos": "noun",
  "pos_title": "名詞",
  "senses": [
    {
      "glosses": [
        "世にも希なこと。"
      ]
    },
    {
      "glosses": [
        "不思議なこと。"
      ]
    }
  ],
  "word": "希代"
}