"наудачу" meaning in Russian

{
  "forms": [
    {
      "form": "науда́чу",
      "tags": [
        "canonical"
      ]
    },
    {
      "form": "naudáču",
      "tags": [
        "romanization"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "науда́чу"
      },
      "expansion": "науда́чу • (naudáču)",
      "name": "ru-adv"
    }
  ],
  "lang": "Russian",
  "lang_code": "ru",
  "pos": "adv",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Russian entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "at random, haphazardly"
      ],
      "id": "en-наудачу-ru-adv-Y6fA0v2l",
      "links": [
        [
          "at random",
          "at random"
        ],
        [
          "haphazardly",
          "haphazardly"
        ]
      ],
      "related": [
        {
          "roman": "udáča",
          "tags": [
            "feminine"
          ],
          "word": "уда́ча"
        }
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "[nəʊˈdat͡ɕʊ]"
    }
  ],
  "word": "наудачу"
}

{
  "forms": [
    {
      "form": "науда́чу",
      "tags": [
        "canonical"
      ]
    },
    {
      "form": "naudáču",
      "tags": [
        "romanization"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "науда́чу"
      },
      "expansion": "науда́чу • (naudáču)",
      "name": "ru-adv"
    }
  ],
  "lang": "Russian",
  "lang_code": "ru",
  "pos": "adv",
  "related": [
    {
      "roman": "udáča",
      "tags": [
        "feminine"
      ],
      "word": "уда́ча"
    }
  ],
  "senses": [
    {
      "categories": [
        "Pages with 1 entry",
        "Pages with entries",
        "Russian 4-syllable words",
        "Russian adverbs",
        "Russian entries with incorrect language header",
        "Russian lemmas",
        "Russian terms with IPA pronunciation"
      ],
      "glosses": [
        "at random, haphazardly"
      ],
      "links": [
        [
          "at random",
          "at random"
        ],
        [
          "haphazardly",
          "haphazardly"
        ]
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "[nəʊˈdat͡ɕʊ]"
    }
  ],
  "word": "наудачу"
}