"understudied" meaning in English

{
  "etymology_number": 1,
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "under",
        "3": "studied"
      },
      "expansion": "under- + studied",
      "name": "prefix"
    }
  ],
  "etymology_text": "under- + studied",
  "forms": [
    {
      "form": "more understudied",
      "tags": [
        "comparative"
      ]
    },
    {
      "form": "most understudied",
      "tags": [
        "superlative"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "understudied (comparative more understudied, superlative most understudied)",
      "name": "en-adj"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "adj",
  "senses": [
    {
      "categories": [
        {
          "_dis": "48 52",
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        },
        {
          "kind": "other",
          "name": "English terms prefixed with under-",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "48 52",
          "kind": "other",
          "name": "English terms suffixed with -ed",
          "parents": [],
          "source": "w+disamb"
        }
      ],
      "glosses": [
        "Insufficiently studied."
      ],
      "id": "en-understudied-en-adj-axLwtZlJ",
      "links": [
        [
          "studied",
          "study"
        ]
      ],
      "related": [
        {
          "word": "overstudied"
        },
        {
          "word": "underserved"
        },
        {
          "word": "underused"
        }
      ]
    }
  ],
  "word": "understudied"
}

{
  "etymology_number": 2,
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "understudy",
        "3": "ed"
      },
      "expansion": "understudy + -ed",
      "name": "suffix"
    }
  ],
  "etymology_text": "understudy + -ed",
  "head_templates": [
    {
      "args": {
        "1": "en",
        "2": "verb form"
      },
      "expansion": "understudied",
      "name": "head"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "verb",
  "senses": [
    {
      "categories": [
        {
          "_dis": "48 52",
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        },
        {
          "_dis": "48 52",
          "kind": "other",
          "name": "English terms suffixed with -ed",
          "parents": [],
          "source": "w+disamb"
        }
      ],
      "form_of": [
        {
          "word": "understudy"
        }
      ],
      "glosses": [
        "simple past and past participle of understudy"
      ],
      "id": "en-understudied-en-verb-kZnLzFuT",
      "links": [
        [
          "understudy",
          "understudy#English"
        ]
      ],
      "tags": [
        "form-of",
        "participle",
        "past"
      ]
    }
  ],
  "word": "understudied"
}

{
  "categories": [
    "English adjectives",
    "English entries with incorrect language header",
    "English lemmas",
    "English non-lemma forms",
    "English terms prefixed with under-",
    "English terms suffixed with -ed",
    "English verb forms"
  ],
  "etymology_number": 1,
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "under",
        "3": "studied"
      },
      "expansion": "under- + studied",
      "name": "prefix"
    }
  ],
  "etymology_text": "under- + studied",
  "forms": [
    {
      "form": "more understudied",
      "tags": [
        "comparative"
      ]
    },
    {
      "form": "most understudied",
      "tags": [
        "superlative"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "understudied (comparative more understudied, superlative most understudied)",
      "name": "en-adj"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "adj",
  "related": [
    {
      "word": "overstudied"
    },
    {
      "word": "underserved"
    },
    {
      "word": "underused"
    }
  ],
  "senses": [
    {
      "glosses": [
        "Insufficiently studied."
      ],
      "links": [
        [
          "studied",
          "study"
        ]
      ]
    }
  ],
  "word": "understudied"
}

{
  "categories": [
    "English entries with incorrect language header",
    "English non-lemma forms",
    "English terms suffixed with -ed",
    "English verb forms"
  ],
  "etymology_number": 2,
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "understudy",
        "3": "ed"
      },
      "expansion": "understudy + -ed",
      "name": "suffix"
    }
  ],
  "etymology_text": "understudy + -ed",
  "head_templates": [
    {
      "args": {
        "1": "en",
        "2": "verb form"
      },
      "expansion": "understudied",
      "name": "head"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "verb",
  "senses": [
    {
      "form_of": [
        {
          "word": "understudy"
        }
      ],
      "glosses": [
        "simple past and past participle of understudy"
      ],
      "links": [
        [
          "understudy",
          "understudy#English"
        ]
      ],
      "tags": [
        "form-of",
        "participle",
        "past"
      ]
    }
  ],
  "word": "understudied"
}