"wise beyond one's years" meaning in English

{
  "head_templates": [
    {
      "args": {
        "1": "-"
      },
      "expansion": "wise beyond one's years (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"
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          "source": "w"
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          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
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          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        }
      ],
      "derived": [
        {
          "tags": [
            "rare"
          ],
          "word": "beyond one's years"
        }
      ],
      "examples": [
        {
          "ref": "1999, Mona the Vampire, \"The Miserable Phantom Dog\" (season 1, episode 3a)",
          "text": "Mrs. Bryerson: Um, aren't you a little young to be contacting the spirit world, dear?\nMona: I think you'll find I'm wise beyond my years."
        }
      ],
      "glosses": [
        "Particularly wise for one's age group; wiser than most others of one's age."
      ],
      "id": "en-wise_beyond_one's_years-en-adj-GZrShDcc",
      "links": [
        [
          "age group",
          "age group"
        ]
      ],
      "related": [
        {
          "word": "old head on young shoulders"
        }
      ],
      "tags": [
        "not-comparable"
      ]
    }
  ],
  "word": "wise beyond one's years"
}

{
  "derived": [
    {
      "tags": [
        "rare"
      ],
      "word": "beyond one's years"
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "-"
      },
      "expansion": "wise beyond one's years (not comparable)",
      "name": "en-adj"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "adj",
  "related": [
    {
      "word": "old head on young shoulders"
    }
  ],
  "senses": [
    {
      "categories": [
        "English adjectives",
        "English entries with incorrect language header",
        "English idioms",
        "English lemmas",
        "English multiword terms",
        "English uncomparable adjectives",
        "Pages with 1 entry",
        "Pages with entries"
      ],
      "examples": [
        {
          "ref": "1999, Mona the Vampire, \"The Miserable Phantom Dog\" (season 1, episode 3a)",
          "text": "Mrs. Bryerson: Um, aren't you a little young to be contacting the spirit world, dear?\nMona: I think you'll find I'm wise beyond my years."
        }
      ],
      "glosses": [
        "Particularly wise for one's age group; wiser than most others of one's age."
      ],
      "links": [
        [
          "age group",
          "age group"
        ]
      ],
      "tags": [
        "not-comparable"
      ]
    }
  ],
  "word": "wise beyond one's years"
}