"虎頭蛇尾" meaning in 日本語

{
  "categories": [
    {
      "kind": "other",
      "name": "日本語",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "日本語_成句",
      "parents": [],
      "source": "w"
    }
  ],
  "forms": [
    {
      "form": "ことうだび"
    }
  ],
  "lang": "日本語",
  "lang_code": "ja",
  "pos": "phrase",
  "pos_title": "成句",
  "senses": [
    {
      "glosses": [
        "最初は盛んで、最後が振るわないたとえ。"
      ],
      "id": "ja-虎頭蛇尾-ja-phrase-YG4cv4Jl"
    }
  ],
  "synonyms": [
    {
      "word": "竜頭蛇尾"
    }
  ],
  "tags": [
    "idiomatic"
  ],
  "word": "虎頭蛇尾"
}

{
  "categories": [
    "日本語",
    "日本語_成句"
  ],
  "forms": [
    {
      "form": "ことうだび"
    }
  ],
  "lang": "日本語",
  "lang_code": "ja",
  "pos": "phrase",
  "pos_title": "成句",
  "senses": [
    {
      "glosses": [
        "最初は盛んで、最後が振るわないたとえ。"
      ]
    }
  ],
  "synonyms": [
    {
      "word": "竜頭蛇尾"
    }
  ],
  "tags": [
    "idiomatic"
  ],
  "word": "虎頭蛇尾"
}