"unscheduled" meaning in English

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "un",
        "3": "scheduled"
      },
      "expansion": "un- + scheduled",
      "name": "prefix"
    }
  ],
  "etymology_text": "un- + scheduled",
  "forms": [
    {
      "form": "more unscheduled",
      "tags": [
        "comparative"
      ]
    },
    {
      "form": "most unscheduled",
      "tags": [
        "superlative"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "unscheduled (comparative more unscheduled, superlative most unscheduled)",
      "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"
        }
      ],
      "derived": [
        {
          "word": "rapid unscheduled disassembly"
        }
      ],
      "examples": [
        {
          "ref": "1947 January and February, Gerald Druce (Jun.), “A Journey on the \"Slovak Arrow\"”, in Railway Magazine, page 17",
          "text": "There were two further unscheduled stops, one at a small station, Skalice, where a small party of tourists entrained, and at Břeclav, a junction and customs post on the Austrian frontier.",
          "type": "quotation"
        },
        {
          "ref": "1962 April, R. K. Evans, “The Acceptance Testing of Diesel Locomotives”, in Modern Railways, page 268",
          "text": "Because most diesel failures can be traced to electrical faults, minor in themselves but often difficult to pin-point, any unscheduled halt during a trial run is often the signal for the frenzied unfolding of wiring diagrams and the appearance of an impressive array of voltmeters and circuit testers.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "Not scheduled; impromptu."
      ],
      "id": "en-unscheduled-en-adj-BuT4G0Dz",
      "links": [
        [
          "scheduled",
          "scheduled"
        ],
        [
          "impromptu",
          "impromptu"
        ]
      ]
    }
  ],
  "word": "unscheduled"
}

{
  "derived": [
    {
      "word": "rapid unscheduled disassembly"
    }
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "un",
        "3": "scheduled"
      },
      "expansion": "un- + scheduled",
      "name": "prefix"
    }
  ],
  "etymology_text": "un- + scheduled",
  "forms": [
    {
      "form": "more unscheduled",
      "tags": [
        "comparative"
      ]
    },
    {
      "form": "most unscheduled",
      "tags": [
        "superlative"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "unscheduled (comparative more unscheduled, superlative most unscheduled)",
      "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 quotations"
      ],
      "examples": [
        {
          "ref": "1947 January and February, Gerald Druce (Jun.), “A Journey on the \"Slovak Arrow\"”, in Railway Magazine, page 17",
          "text": "There were two further unscheduled stops, one at a small station, Skalice, where a small party of tourists entrained, and at Břeclav, a junction and customs post on the Austrian frontier.",
          "type": "quotation"
        },
        {
          "ref": "1962 April, R. K. Evans, “The Acceptance Testing of Diesel Locomotives”, in Modern Railways, page 268",
          "text": "Because most diesel failures can be traced to electrical faults, minor in themselves but often difficult to pin-point, any unscheduled halt during a trial run is often the signal for the frenzied unfolding of wiring diagrams and the appearance of an impressive array of voltmeters and circuit testers.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "Not scheduled; impromptu."
      ],
      "links": [
        [
          "scheduled",
          "scheduled"
        ],
        [
          "impromptu",
          "impromptu"
        ]
      ]
    }
  ],
  "word": "unscheduled"
}