"unattested" meaning in English

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "un",
        "3": "attested"
      },
      "expansion": "un- + attested",
      "name": "prefix"
    }
  ],
  "etymology_text": "From un- + attested.",
  "forms": [
    {
      "form": "more unattested",
      "tags": [
        "comparative"
      ]
    },
    {
      "form": "most unattested",
      "tags": [
        "superlative"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "unattested (comparative more unattested, superlative most unattested)",
      "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 prefixed with un-",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Entries with translation boxes",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Terms with Armenian translations",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Terms with Finnish translations",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Terms with French translations",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Terms with Galician translations",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Terms with Greek translations",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Terms with Polish translations",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Terms with Russian translations",
          "parents": [],
          "source": "w"
        }
      ],
      "examples": [
        {
          "text": "The plural form of this noun must surely have existed in the speech of medieval farmers, although it is unattested in surviving books from the period.",
          "type": "example"
        }
      ],
      "glosses": [
        "Not supported by attestation; lacking supporting evidence in the form of assurance from an authority."
      ],
      "id": "en-unattested-en-adj-VDW5ep8S",
      "links": [
        [
          "attestation",
          "attestation"
        ],
        [
          "evidence",
          "evidence"
        ]
      ],
      "translations": [
        {
          "code": "hy",
          "lang": "Armenian",
          "roman": "čʻvkayvac",
          "sense": "not existing in any documented form",
          "word": "չվկայված"
        },
        {
          "code": "fi",
          "lang": "Finnish",
          "sense": "not existing in any documented form",
          "word": "kirjallisista lähteistä löytymätön"
        },
        {
          "code": "fi",
          "lang": "Finnish",
          "note": "kirjallisissa lähteissä mainitsematon (however, it is more common to simply say that something is not attested, i.e. mentioned or found, in sources)",
          "sense": "not existing in any documented form"
        },
        {
          "code": "fr",
          "lang": "French",
          "sense": "not existing in any documented form",
          "word": "inattesté"
        },
        {
          "code": "gl",
          "lang": "Galician",
          "sense": "not existing in any documented form",
          "tags": [
            "masculine"
          ],
          "word": "non atestado"
        },
        {
          "code": "el",
          "lang": "Greek",
          "roman": "amártyros",
          "sense": "not existing in any documented form",
          "word": "αμάρτυρος"
        },
        {
          "code": "pl",
          "lang": "Polish",
          "sense": "not existing in any documented form",
          "word": "niezaświadczony"
        },
        {
          "code": "ru",
          "lang": "Russian",
          "roman": "nezasvidetelʹstvovannyj",
          "sense": "not existing in any documented form",
          "word": "незасвидетельствованный"
        }
      ]
    }
  ],
  "word": "unattested"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "un",
        "3": "attested"
      },
      "expansion": "un- + attested",
      "name": "prefix"
    }
  ],
  "etymology_text": "From un- + attested.",
  "forms": [
    {
      "form": "more unattested",
      "tags": [
        "comparative"
      ]
    },
    {
      "form": "most unattested",
      "tags": [
        "superlative"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "unattested (comparative more unattested, superlative most unattested)",
      "name": "en-adj"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "adj",
  "senses": [
    {
      "categories": [
        "English adjectives",
        "English entries with incorrect language header",
        "English lemmas",
        "English terms prefixed with un-",
        "English terms with usage examples",
        "Entries with translation boxes",
        "Pages with 1 entry",
        "Pages with entries",
        "Terms with Armenian translations",
        "Terms with Finnish translations",
        "Terms with French translations",
        "Terms with Galician translations",
        "Terms with Greek translations",
        "Terms with Polish translations",
        "Terms with Russian translations"
      ],
      "examples": [
        {
          "text": "The plural form of this noun must surely have existed in the speech of medieval farmers, although it is unattested in surviving books from the period.",
          "type": "example"
        }
      ],
      "glosses": [
        "Not supported by attestation; lacking supporting evidence in the form of assurance from an authority."
      ],
      "links": [
        [
          "attestation",
          "attestation"
        ],
        [
          "evidence",
          "evidence"
        ]
      ]
    }
  ],
  "translations": [
    {
      "code": "hy",
      "lang": "Armenian",
      "roman": "čʻvkayvac",
      "sense": "not existing in any documented form",
      "word": "չվկայված"
    },
    {
      "code": "fi",
      "lang": "Finnish",
      "sense": "not existing in any documented form",
      "word": "kirjallisista lähteistä löytymätön"
    },
    {
      "code": "fi",
      "lang": "Finnish",
      "note": "kirjallisissa lähteissä mainitsematon (however, it is more common to simply say that something is not attested, i.e. mentioned or found, in sources)",
      "sense": "not existing in any documented form"
    },
    {
      "code": "fr",
      "lang": "French",
      "sense": "not existing in any documented form",
      "word": "inattesté"
    },
    {
      "code": "gl",
      "lang": "Galician",
      "sense": "not existing in any documented form",
      "tags": [
        "masculine"
      ],
      "word": "non atestado"
    },
    {
      "code": "el",
      "lang": "Greek",
      "roman": "amártyros",
      "sense": "not existing in any documented form",
      "word": "αμάρτυρος"
    },
    {
      "code": "pl",
      "lang": "Polish",
      "sense": "not existing in any documented form",
      "word": "niezaświadczony"
    },
    {
      "code": "ru",
      "lang": "Russian",
      "roman": "nezasvidetelʹstvovannyj",
      "sense": "not existing in any documented form",
      "word": "незасвидетельствованный"
    }
  ],
  "word": "unattested"
}