"negationism" meaning in English

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "negation",
        "3": "ism"
      },
      "expansion": "negation + -ism",
      "name": "suffix"
    }
  ],
  "etymology_text": "From negation + -ism.",
  "forms": [
    {
      "form": "negationisms",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "-",
        "2": "s"
      },
      "expansion": "negationism (usually uncountable, plural negationisms)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English terms suffixed with -ism",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        }
      ],
      "examples": [
        {
          "ref": "2021, Otto English, Fake History, page 311:",
          "text": "Across the world ruling elites have become ever more prone to historical negationism",
          "type": "quote"
        }
      ],
      "glosses": [
        "The revision of history in order to omit something that actually happened."
      ],
      "id": "en-negationism-en-noun-cgciPaFS",
      "links": [
        [
          "revision",
          "revision"
        ],
        [
          "history",
          "history"
        ],
        [
          "omit",
          "omit"
        ]
      ],
      "related": [
        {
          "word": "negationist"
        }
      ],
      "synonyms": [
        {
          "word": "denialism"
        }
      ],
      "tags": [
        "uncountable",
        "usually"
      ]
    }
  ],
  "word": "negationism"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "negation",
        "3": "ism"
      },
      "expansion": "negation + -ism",
      "name": "suffix"
    }
  ],
  "etymology_text": "From negation + -ism.",
  "forms": [
    {
      "form": "negationisms",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "-",
        "2": "s"
      },
      "expansion": "negationism (usually uncountable, plural negationisms)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "related": [
    {
      "word": "negationist"
    }
  ],
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English lemmas",
        "English nouns",
        "English terms suffixed with -ism",
        "English terms with quotations",
        "English uncountable nouns",
        "Pages with 1 entry"
      ],
      "examples": [
        {
          "ref": "2021, Otto English, Fake History, page 311:",
          "text": "Across the world ruling elites have become ever more prone to historical negationism",
          "type": "quote"
        }
      ],
      "glosses": [
        "The revision of history in order to omit something that actually happened."
      ],
      "links": [
        [
          "revision",
          "revision"
        ],
        [
          "history",
          "history"
        ],
        [
          "omit",
          "omit"
        ]
      ],
      "tags": [
        "uncountable",
        "usually"
      ]
    }
  ],
  "synonyms": [
    {
      "word": "denialism"
    }
  ],
  "word": "negationism"
}