"redefinable" meaning in English

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "redefine",
        "3": "able"
      },
      "expansion": "redefine + -able",
      "name": "suffix"
    }
  ],
  "etymology_text": "redefine + -able",
  "head_templates": [
    {
      "args": {
        "1": "-"
      },
      "expansion": "redefinable (not comparable)",
      "name": "en-adj"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "adj",
  "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 -able",
          "parents": [],
          "source": "w"
        }
      ],
      "examples": [
        {
          "ref": "1988, David Powell, Death Or Glory (video game review) in Your Sinclair (issue 25, January 1988)",
          "text": "With a joystick (the keys are awkward and not redefinable) I found that forward is thrust, back is brake and the fire button, while nothing actually gets fired, needs to be pressed to destroy each piece of the mothership […]"
        }
      ],
      "glosses": [
        "That can be redefined."
      ],
      "id": "en-redefinable-en-adj-PWNi47Lx",
      "links": [
        [
          "redefine",
          "redefine"
        ]
      ],
      "tags": [
        "not-comparable"
      ]
    }
  ],
  "word": "redefinable"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "redefine",
        "3": "able"
      },
      "expansion": "redefine + -able",
      "name": "suffix"
    }
  ],
  "etymology_text": "redefine + -able",
  "head_templates": [
    {
      "args": {
        "1": "-"
      },
      "expansion": "redefinable (not comparable)",
      "name": "en-adj"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "adj",
  "senses": [
    {
      "categories": [
        "English adjectives",
        "English entries with incorrect language header",
        "English lemmas",
        "English terms suffixed with -able",
        "English uncomparable adjectives"
      ],
      "examples": [
        {
          "ref": "1988, David Powell, Death Or Glory (video game review) in Your Sinclair (issue 25, January 1988)",
          "text": "With a joystick (the keys are awkward and not redefinable) I found that forward is thrust, back is brake and the fire button, while nothing actually gets fired, needs to be pressed to destroy each piece of the mothership […]"
        }
      ],
      "glosses": [
        "That can be redefined."
      ],
      "links": [
        [
          "redefine",
          "redefine"
        ]
      ],
      "tags": [
        "not-comparable"
      ]
    }
  ],
  "word": "redefinable"
}