"less and less" meaning in 英語

{
  "antonyms": [
    {
      "word": "more and more"
    }
  ],
  "categories": [
    {
      "kind": "other",
      "name": "英語",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "英語 成句",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "英語 成句 副詞句",
      "parents": [],
      "source": "w"
    }
  ],
  "lang": "英語",
  "lang_code": "en",
  "pos": "phrase",
  "pos_title": "成句",
  "senses": [
    {
      "examples": [
        {
          "text": "Since the great combinations in 2000s, Japanese cities grew less and less prosperous.",
          "translation": "（裏返して）2000年代の大合併以降、日本の都市は一層衰退した。"
        }
      ],
      "glosses": [
        "一層～ではない。益々～じゃない。"
      ],
      "id": "ja-less_and_less-en-phrase-SQpD2nHC"
    }
  ],
  "tags": [
    "idiomatic"
  ],
  "word": "less and less"
}

{
  "antonyms": [
    {
      "word": "more and more"
    }
  ],
  "categories": [
    "英語",
    "英語 成句",
    "英語 成句 副詞句"
  ],
  "lang": "英語",
  "lang_code": "en",
  "pos": "phrase",
  "pos_title": "成句",
  "senses": [
    {
      "examples": [
        {
          "text": "Since the great combinations in 2000s, Japanese cities grew less and less prosperous.",
          "translation": "（裏返して）2000年代の大合併以降、日本の都市は一層衰退した。"
        }
      ],
      "glosses": [
        "一層～ではない。益々～じゃない。"
      ]
    }
  ],
  "tags": [
    "idiomatic"
  ],
  "word": "less and less"
}