"unevent" meaning in English

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "un",
        "3": "event"
      },
      "expansion": "un- + event",
      "name": "prefix"
    }
  ],
  "etymology_text": "un- + event",
  "forms": [
    {
      "form": "unevents",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "unevent (plural unevents)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "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"
        }
      ],
      "examples": [
        {
          "ref": "2002, Stefan Hedlund, Russia's Market Economy: A Bad Case of Predatory Capitalism",
          "text": "Although the coup as such was something of an unevent, it did leave a lasting imprint on the new tsar and thus influenced the autocracy for the coming three decades.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "An event that goes unnoticed."
      ],
      "id": "en-unevent-en-noun-6-Ob6hkJ",
      "links": [
        [
          "event",
          "event"
        ]
      ]
    }
  ],
  "word": "unevent"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "un",
        "3": "event"
      },
      "expansion": "un- + event",
      "name": "prefix"
    }
  ],
  "etymology_text": "un- + event",
  "forms": [
    {
      "form": "unevents",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "unevent (plural unevents)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English lemmas",
        "English nouns",
        "English terms prefixed with un-",
        "English terms with quotations"
      ],
      "examples": [
        {
          "ref": "2002, Stefan Hedlund, Russia's Market Economy: A Bad Case of Predatory Capitalism",
          "text": "Although the coup as such was something of an unevent, it did leave a lasting imprint on the new tsar and thus influenced the autocracy for the coming three decades.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "An event that goes unnoticed."
      ],
      "links": [
        [
          "event",
          "event"
        ]
      ]
    }
  ],
  "word": "unevent"
}