"Lost Cause" meaning in English

{
  "etymology_text": "From the generic term lost cause. The Confederacy was, of course, defeated.",
  "forms": [
    {
      "form": "the Lost Cause",
      "tags": [
        "canonical"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "def": "1",
        "head": "Lost Cause"
      },
      "expansion": "the Lost Cause",
      "name": "en-proper noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "name",
  "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": "American Civil War",
          "orig": "en:American Civil War",
          "parents": [
            "Historical events",
            "History of the United States",
            "Slavery",
            "War",
            "History",
            "United States",
            "Society",
            "Work",
            "Conflict",
            "Military",
            "Violence",
            "All topics",
            "North America",
            "Human activity",
            "Human behaviour",
            "Fundamental",
            "America",
            "Human",
            "Earth",
            "Nature"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Ideologies",
          "orig": "en:Ideologies",
          "parents": [
            "Politics",
            "Society",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "examples": [
        {
          "ref": "1993 April, H. E. Gulley, “Women and the Lost Cause: preserving a Confederate identity in the American Deep South”, in Journal of Historical Geography, volume 19, number 2, →DOI, →ISSN, pages 125–141:",
          "text": "Also implicit was the idea that all southerners accepted the basic tenets of the Lost Cause myth and concurred in this celebration of the Confederacy.",
          "type": "quote"
        }
      ],
      "glosses": [
        "The belief that the Confederate cause during the American Civil War was just and not related to slavery."
      ],
      "id": "en-Lost_Cause-en-name-aCidbfCZ",
      "links": [
        [
          "Confederate",
          "Confederate"
        ],
        [
          "American Civil War",
          "American Civil War"
        ],
        [
          "slavery",
          "slavery"
        ]
      ],
      "wikipedia": [
        "Robert E. Lee"
      ]
    }
  ],
  "word": "Lost Cause"
}

{
  "etymology_text": "From the generic term lost cause. The Confederacy was, of course, defeated.",
  "forms": [
    {
      "form": "the Lost Cause",
      "tags": [
        "canonical"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "def": "1",
        "head": "Lost Cause"
      },
      "expansion": "the Lost Cause",
      "name": "en-proper noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "name",
  "senses": [
    {
      "categories": [
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English proper nouns",
        "English terms with quotations",
        "English uncountable nouns",
        "Pages with 1 entry",
        "Pages with entries",
        "en:American Civil War",
        "en:Ideologies"
      ],
      "examples": [
        {
          "ref": "1993 April, H. E. Gulley, “Women and the Lost Cause: preserving a Confederate identity in the American Deep South”, in Journal of Historical Geography, volume 19, number 2, →DOI, →ISSN, pages 125–141:",
          "text": "Also implicit was the idea that all southerners accepted the basic tenets of the Lost Cause myth and concurred in this celebration of the Confederacy.",
          "type": "quote"
        }
      ],
      "glosses": [
        "The belief that the Confederate cause during the American Civil War was just and not related to slavery."
      ],
      "links": [
        [
          "Confederate",
          "Confederate"
        ],
        [
          "American Civil War",
          "American Civil War"
        ],
        [
          "slavery",
          "slavery"
        ]
      ],
      "wikipedia": [
        "Robert E. Lee"
      ]
    }
  ],
  "word": "Lost Cause"
}