"insustentable" meaning in Spanish

{
  "forms": [
    {
      "form": "insustentables",
      "tags": [
        "feminine",
        "masculine",
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "insustentable m or f (masculine and feminine plural insustentables)",
      "name": "es-adj"
    }
  ],
  "lang": "Spanish",
  "lang_code": "es",
  "pos": "adj",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Spanish entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        }
      ],
      "examples": [
        {
          "english": "(please add an English translation of this quotation)",
          "ref": "2015 July 9, “El acero subsidiado chino pone en jaque a la industria mexicana”, in El País",
          "text": "Al ser subsidiadas les permite operar en condiciones que serían económicamente insustentables para cualquier empresa privada.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "unsustainable"
      ],
      "id": "en-insustentable-es-adj-KfCIm93X",
      "links": [
        [
          "unsustainable",
          "unsustainable"
        ]
      ],
      "tags": [
        "feminine",
        "masculine"
      ]
    }
  ],
  "word": "insustentable"
}

{
  "forms": [
    {
      "form": "insustentables",
      "tags": [
        "feminine",
        "masculine",
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "insustentable m or f (masculine and feminine plural insustentables)",
      "name": "es-adj"
    }
  ],
  "lang": "Spanish",
  "lang_code": "es",
  "pos": "adj",
  "senses": [
    {
      "categories": [
        "Requests for translations of Spanish quotations",
        "Spanish adjectives",
        "Spanish entries with incorrect language header",
        "Spanish epicene adjectives",
        "Spanish lemmas",
        "Spanish terms with quotations"
      ],
      "examples": [
        {
          "english": "(please add an English translation of this quotation)",
          "ref": "2015 July 9, “El acero subsidiado chino pone en jaque a la industria mexicana”, in El País",
          "text": "Al ser subsidiadas les permite operar en condiciones que serían económicamente insustentables para cualquier empresa privada.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "unsustainable"
      ],
      "links": [
        [
          "unsustainable",
          "unsustainable"
        ]
      ],
      "tags": [
        "feminine",
        "masculine"
      ]
    }
  ],
  "word": "insustentable"
}