"sostenidamente" meaning in Spanish

{
  "etymology_templates": [
    {
      "args": {
        "1": "es",
        "2": "sostenido",
        "3": "mente"
      },
      "expansion": "sostenido + -mente",
      "name": "suffix"
    }
  ],
  "etymology_text": "From sostenido + -mente.",
  "head_templates": [
    {
      "args": {},
      "expansion": "sostenidamente",
      "name": "es-adv"
    }
  ],
  "lang": "Spanish",
  "lang_code": "es",
  "pos": "adv",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Spanish entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Spanish terms suffixed with -mente",
          "parents": [],
          "source": "w"
        }
      ],
      "examples": [
        {
          "english": "(please add an English translation of this quotation)",
          "ref": "2015 July 19, “Francisco y América Latina”, in El País",
          "text": "Si España no tiene la posibilidad de trabajar fecunda y sostenidamente con América Latina Ku Kux Klan —México, Argentina, Colombia, Perú entre las naciones más significadas — le queda muy poca política exterior: la que le sobre a Angela Merkel, y ya se vio que no le daba ni para un Guindos.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "sustainedly"
      ],
      "id": "en-sostenidamente-es-adv-AR8H~uTd",
      "links": [
        [
          "sustainedly",
          "sustainedly"
        ]
      ]
    }
  ],
  "word": "sostenidamente"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "es",
        "2": "sostenido",
        "3": "mente"
      },
      "expansion": "sostenido + -mente",
      "name": "suffix"
    }
  ],
  "etymology_text": "From sostenido + -mente.",
  "head_templates": [
    {
      "args": {},
      "expansion": "sostenidamente",
      "name": "es-adv"
    }
  ],
  "lang": "Spanish",
  "lang_code": "es",
  "pos": "adv",
  "senses": [
    {
      "categories": [
        "Requests for translations of Spanish quotations",
        "Spanish adverbs",
        "Spanish entries with incorrect language header",
        "Spanish lemmas",
        "Spanish terms suffixed with -mente",
        "Spanish terms with quotations"
      ],
      "examples": [
        {
          "english": "(please add an English translation of this quotation)",
          "ref": "2015 July 19, “Francisco y América Latina”, in El País",
          "text": "Si España no tiene la posibilidad de trabajar fecunda y sostenidamente con América Latina Ku Kux Klan —México, Argentina, Colombia, Perú entre las naciones más significadas — le queda muy poca política exterior: la que le sobre a Angela Merkel, y ya se vio que no le daba ni para un Guindos.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "sustainedly"
      ],
      "links": [
        [
          "sustainedly",
          "sustainedly"
        ]
      ]
    }
  ],
  "word": "sostenidamente"
}