"variableness" meaning in English

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "variable",
        "3": "ness"
      },
      "expansion": "variable + -ness",
      "name": "suffix"
    }
  ],
  "etymology_text": "From variable + -ness.",
  "forms": [
    {
      "form": "variablenesses",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "~"
      },
      "expansion": "variableness (countable and uncountable, plural variablenesses)",
      "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 -ness",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "The quality or state of being variable."
      ],
      "id": "en-variableness-en-noun-ja2ntsUR",
      "links": [
        [
          "variable",
          "variable"
        ]
      ],
      "synonyms": [
        {
          "word": "variability"
        }
      ],
      "tags": [
        "countable",
        "uncountable"
      ]
    }
  ],
  "word": "variableness"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "variable",
        "3": "ness"
      },
      "expansion": "variable + -ness",
      "name": "suffix"
    }
  ],
  "etymology_text": "From variable + -ness.",
  "forms": [
    {
      "form": "variablenesses",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "~"
      },
      "expansion": "variableness (countable and uncountable, plural variablenesses)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English lemmas",
        "English nouns",
        "English terms suffixed with -ness",
        "English uncountable nouns",
        "Pages with 1 entry",
        "Pages with entries"
      ],
      "glosses": [
        "The quality or state of being variable."
      ],
      "links": [
        [
          "variable",
          "variable"
        ]
      ],
      "tags": [
        "countable",
        "uncountable"
      ]
    }
  ],
  "synonyms": [
    {
      "word": "variability"
    }
  ],
  "word": "variableness"
}