"unplanned" meaning in English

{
  "categories": [
    {
      "kind": "other",
      "name": "Terms prefixed with un-",
      "parents": [],
      "source": "w"
    }
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "un",
        "2": "planned"
      },
      "expansion": "un- + planned",
      "name": "ety-prefix"
    }
  ],
  "etymology_text": "un- + planned",
  "forms": [
    {
      "form": "unplanned",
      "tags": [
        "positive"
      ]
    },
    {
      "form": "more unplanned",
      "tags": [
        "comparative"
      ]
    },
    {
      "form": "most unplanned",
      "tags": [
        "superlative"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "more": "true"
      },
      "expansion": "[POS TABLE]",
      "name": "adj"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "adj",
  "senses": [
    {
      "examples": [
        {
          "text": "The change in tactics used to rob the bank was unplanned."
        }
      ],
      "glosses": [
        "If something that has happened was unplanned, it was not intended."
      ],
      "id": "simple-unplanned-en-adj-rIcMQiHJ",
      "synonyms": [
        {
          "word": "unintentional"
        }
      ]
    },
    {
      "glosses": [
        "If something is unplanned, it was not thought of in advance."
      ],
      "id": "simple-unplanned-en-adj-1soZNbRH",
      "synonyms": [
        {
          "word": "spontaneous"
        }
      ]
    },
    {
      "glosses": [
        "If something is unplanned, it does not have a structure or organization."
      ],
      "id": "simple-unplanned-en-adj-o98hRKuy"
    }
  ],
  "word": "unplanned"
}

{
  "categories": [
    "Terms prefixed with un-"
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "un",
        "2": "planned"
      },
      "expansion": "un- + planned",
      "name": "ety-prefix"
    }
  ],
  "etymology_text": "un- + planned",
  "forms": [
    {
      "form": "unplanned",
      "tags": [
        "positive"
      ]
    },
    {
      "form": "more unplanned",
      "tags": [
        "comparative"
      ]
    },
    {
      "form": "most unplanned",
      "tags": [
        "superlative"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "more": "true"
      },
      "expansion": "[POS TABLE]",
      "name": "adj"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "adj",
  "senses": [
    {
      "examples": [
        {
          "text": "The change in tactics used to rob the bank was unplanned."
        }
      ],
      "glosses": [
        "If something that has happened was unplanned, it was not intended."
      ],
      "synonyms": [
        {
          "word": "unintentional"
        }
      ]
    },
    {
      "glosses": [
        "If something is unplanned, it was not thought of in advance."
      ],
      "synonyms": [
        {
          "word": "spontaneous"
        }
      ]
    },
    {
      "glosses": [
        "If something is unplanned, it does not have a structure or organization."
      ]
    }
  ],
  "word": "unplanned"
}