"untrain" meaning in English

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "un",
        "3": "train"
      },
      "expansion": "un- + train",
      "name": "prefix"
    }
  ],
  "etymology_text": "un- + train",
  "forms": [
    {
      "form": "untrains",
      "tags": [
        "present",
        "singular",
        "third-person"
      ]
    },
    {
      "form": "untraining",
      "tags": [
        "participle",
        "present"
      ]
    },
    {
      "form": "untrained",
      "tags": [
        "participle",
        "past"
      ]
    },
    {
      "form": "untrained",
      "tags": [
        "past"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "untrain (third-person singular simple present untrains, present participle untraining, simple past and past participle untrained)",
      "name": "en-verb"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "verb",
  "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": "2009 January 14, Patrick Healy, “Where Ballet Is a Boy Thing”, in New York Times",
          "text": "The 11 girls […]are all trained dancers in real life who, for the purposes of \"Billy Elliot,\" must untrain themselves for each performance and dance with two very left feet.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "To reverse or undo one's training; to become less trained than before"
      ],
      "id": "en-untrain-en-verb-zuOuoAIS",
      "links": [
        [
          "undo",
          "undo"
        ],
        [
          "training",
          "training"
        ],
        [
          "trained",
          "trained"
        ]
      ]
    }
  ],
  "word": "untrain"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "un",
        "3": "train"
      },
      "expansion": "un- + train",
      "name": "prefix"
    }
  ],
  "etymology_text": "un- + train",
  "forms": [
    {
      "form": "untrains",
      "tags": [
        "present",
        "singular",
        "third-person"
      ]
    },
    {
      "form": "untraining",
      "tags": [
        "participle",
        "present"
      ]
    },
    {
      "form": "untrained",
      "tags": [
        "participle",
        "past"
      ]
    },
    {
      "form": "untrained",
      "tags": [
        "past"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "untrain (third-person singular simple present untrains, present participle untraining, simple past and past participle untrained)",
      "name": "en-verb"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "verb",
  "senses": [
    {
      "categories": [
        "English entries with incorrect language header",
        "English lemmas",
        "English terms prefixed with un-",
        "English terms with quotations",
        "English verbs"
      ],
      "examples": [
        {
          "ref": "2009 January 14, Patrick Healy, “Where Ballet Is a Boy Thing”, in New York Times",
          "text": "The 11 girls […]are all trained dancers in real life who, for the purposes of \"Billy Elliot,\" must untrain themselves for each performance and dance with two very left feet.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "To reverse or undo one's training; to become less trained than before"
      ],
      "links": [
        [
          "undo",
          "undo"
        ],
        [
          "training",
          "training"
        ],
        [
          "trained",
          "trained"
        ]
      ]
    }
  ],
  "word": "untrain"
}