"avanzatissimo" meaning in Italian

{
  "etymology_templates": [
    {
      "args": {
        "1": "it",
        "2": "avanzato",
        "3": "-issimo"
      },
      "expansion": "avanzato + -issimo",
      "name": "af"
    }
  ],
  "etymology_text": "From avanzato + -issimo.",
  "forms": [
    {
      "form": "avanzatissima",
      "tags": [
        "feminine"
      ]
    },
    {
      "form": "avanzatissimi",
      "tags": [
        "masculine",
        "plural"
      ]
    },
    {
      "form": "avanzatissime",
      "tags": [
        "feminine",
        "plural"
      ]
    }
  ],
  "lang": "Italian",
  "lang_code": "it",
  "pos": "adj",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Italian entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Italian terms suffixed with -issimo",
          "parents": [],
          "source": "w"
        }
      ],
      "form_of": [
        {
          "extra": "very advanced, late or elderly",
          "word": "avanzato"
        }
      ],
      "glosses": [
        "superlative degree of avanzato (“very advanced, late or elderly”)"
      ],
      "id": "en-avanzatissimo-it-adj-o-LRpaG8",
      "links": [
        [
          "avanzato",
          "avanzato#Italian"
        ],
        [
          "advanced",
          "advanced"
        ],
        [
          "late",
          "late"
        ],
        [
          "elderly",
          "elderly"
        ]
      ],
      "tags": [
        "form-of",
        "superlative"
      ]
    }
  ],
  "word": "avanzatissimo"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "it",
        "2": "avanzato",
        "3": "-issimo"
      },
      "expansion": "avanzato + -issimo",
      "name": "af"
    }
  ],
  "etymology_text": "From avanzato + -issimo.",
  "forms": [
    {
      "form": "avanzatissima",
      "tags": [
        "feminine"
      ]
    },
    {
      "form": "avanzatissimi",
      "tags": [
        "masculine",
        "plural"
      ]
    },
    {
      "form": "avanzatissime",
      "tags": [
        "feminine",
        "plural"
      ]
    }
  ],
  "lang": "Italian",
  "lang_code": "it",
  "pos": "adj",
  "senses": [
    {
      "categories": [
        "Italian adjectives",
        "Italian entries with incorrect language header",
        "Italian lemmas",
        "Italian superlative adjectives",
        "Italian terms suffixed with -issimo"
      ],
      "form_of": [
        {
          "extra": "very advanced, late or elderly",
          "word": "avanzato"
        }
      ],
      "glosses": [
        "superlative degree of avanzato (“very advanced, late or elderly”)"
      ],
      "links": [
        [
          "avanzato",
          "avanzato#Italian"
        ],
        [
          "advanced",
          "advanced"
        ],
        [
          "late",
          "late"
        ],
        [
          "elderly",
          "elderly"
        ]
      ],
      "tags": [
        "form-of",
        "superlative"
      ]
    }
  ],
  "word": "avanzatissimo"
}