"undeliverable" meaning in English

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "un",
        "3": "deliverable"
      },
      "expansion": "un- + deliverable",
      "name": "prefix"
    }
  ],
  "etymology_text": "un- + deliverable",
  "head_templates": [
    {
      "args": {
        "1": "-"
      },
      "expansion": "undeliverable (not comparable)",
      "name": "en-adj"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "adj",
  "senses": [
    {
      "categories": [
        {
          "_dis": "83 17",
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        },
        {
          "_dis": "74 26",
          "kind": "other",
          "name": "English entries with topic categories using raw markup",
          "parents": [
            "Entries with topic categories using raw markup",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        }
      ],
      "examples": [
        {
          "text": "The dead letter office keeps undeliverable mail."
        }
      ],
      "glosses": [
        "Not able to be delivered."
      ],
      "id": "en-undeliverable-en-adj-AcI2SyJ1",
      "links": [
        [
          "able",
          "able"
        ],
        [
          "delivered",
          "delivered"
        ]
      ],
      "tags": [
        "not-comparable"
      ]
    }
  ],
  "word": "undeliverable"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "un",
        "3": "deliverable"
      },
      "expansion": "un- + deliverable",
      "name": "prefix"
    }
  ],
  "etymology_text": "un- + deliverable",
  "forms": [
    {
      "form": "undeliverables",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "undeliverable (plural undeliverables)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "_dis": "45 55",
          "kind": "other",
          "name": "English terms prefixed with un-",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "21 79",
          "kind": "topical",
          "langcode": "en",
          "name": "Post",
          "orig": "en:Post",
          "parents": [
            "Communication",
            "All topics",
            "Fundamental"
          ],
          "source": "w+disamb"
        }
      ],
      "glosses": [
        "A message, parcel, etc. that cannot be delivered."
      ],
      "id": "en-undeliverable-en-noun-fy6eEAYY"
    }
  ],
  "word": "undeliverable"
}

{
  "categories": [
    "English adjectives",
    "English countable nouns",
    "English entries with incorrect language header",
    "English entries with topic categories using raw markup",
    "English lemmas",
    "English nouns",
    "English terms prefixed with un-",
    "English uncomparable adjectives",
    "en:Post"
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "un",
        "3": "deliverable"
      },
      "expansion": "un- + deliverable",
      "name": "prefix"
    }
  ],
  "etymology_text": "un- + deliverable",
  "head_templates": [
    {
      "args": {
        "1": "-"
      },
      "expansion": "undeliverable (not comparable)",
      "name": "en-adj"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "adj",
  "senses": [
    {
      "examples": [
        {
          "text": "The dead letter office keeps undeliverable mail."
        }
      ],
      "glosses": [
        "Not able to be delivered."
      ],
      "links": [
        [
          "able",
          "able"
        ],
        [
          "delivered",
          "delivered"
        ]
      ],
      "tags": [
        "not-comparable"
      ]
    }
  ],
  "word": "undeliverable"
}

{
  "categories": [
    "English adjectives",
    "English countable nouns",
    "English entries with incorrect language header",
    "English entries with topic categories using raw markup",
    "English lemmas",
    "English nouns",
    "English terms prefixed with un-",
    "English uncomparable adjectives",
    "en:Post"
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "un",
        "3": "deliverable"
      },
      "expansion": "un- + deliverable",
      "name": "prefix"
    }
  ],
  "etymology_text": "un- + deliverable",
  "forms": [
    {
      "form": "undeliverables",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "undeliverable (plural undeliverables)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "glosses": [
        "A message, parcel, etc. that cannot be delivered."
      ]
    }
  ],
  "word": "undeliverable"
}