"futile" meaning in Latin

{
  "etymology_number": 1,
  "forms": [
    {
      "form": "fūtile",
      "tags": [
        "canonical"
      ]
    },
    {
      "form": "futtile",
      "tags": [
        "alternative"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "fūtile",
        "2": "-"
      },
      "expansion": "fūtile (not comparable)",
      "name": "la-adv"
    }
  ],
  "lang": "Latin",
  "lang_code": "la",
  "pos": "adv",
  "senses": [
    {
      "glosses": [
        "in vain"
      ],
      "id": "en-futile-la-adv-LseFQXGK",
      "links": [
        [
          "in vain",
          "in vain"
        ]
      ],
      "synonyms": [
        {
          "word": "frustrā"
        },
        {
          "word": "in cassum"
        }
      ],
      "tags": [
        "not-comparable"
      ]
    }
  ],
  "word": "futile"
}

{
  "etymology_number": 2,
  "forms": [
    {
      "form": "fūtile",
      "tags": [
        "canonical"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "la",
        "2": "adjective form",
        "head": "fūtile"
      },
      "expansion": "fūtile",
      "name": "head"
    }
  ],
  "lang": "Latin",
  "lang_code": "la",
  "pos": "adj",
  "senses": [
    {
      "categories": [
        {
          "_dis": "81 19",
          "kind": "other",
          "name": "Latin entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        }
      ],
      "form_of": [
        {
          "word": "fūtilis"
        }
      ],
      "glosses": [
        "nominative/accusative/vocative neuter singular of fūtilis"
      ],
      "id": "en-futile-la-adj-nD4rAn~m",
      "links": [
        [
          "fūtilis",
          "futilis#Latin"
        ]
      ],
      "tags": [
        "accusative",
        "form-of",
        "neuter",
        "nominative",
        "singular",
        "vocative"
      ]
    }
  ],
  "word": "futile"
}

{
  "categories": [
    "Latin adjective forms",
    "Latin adverbs",
    "Latin entries with incorrect language header",
    "Latin lemmas",
    "Latin non-lemma forms",
    "Latin uncomparable adverbs",
    "Pages with 4 entries",
    "Pages with entries"
  ],
  "etymology_number": 1,
  "forms": [
    {
      "form": "fūtile",
      "tags": [
        "canonical"
      ]
    },
    {
      "form": "futtile",
      "tags": [
        "alternative"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "fūtile",
        "2": "-"
      },
      "expansion": "fūtile (not comparable)",
      "name": "la-adv"
    }
  ],
  "lang": "Latin",
  "lang_code": "la",
  "pos": "adv",
  "senses": [
    {
      "glosses": [
        "in vain"
      ],
      "links": [
        [
          "in vain",
          "in vain"
        ]
      ],
      "tags": [
        "not-comparable"
      ]
    }
  ],
  "synonyms": [
    {
      "word": "frustrā"
    },
    {
      "word": "in cassum"
    }
  ],
  "word": "futile"
}

{
  "categories": [
    "Latin adjective forms",
    "Latin entries with incorrect language header",
    "Latin non-lemma forms",
    "Pages with 4 entries",
    "Pages with entries"
  ],
  "etymology_number": 2,
  "forms": [
    {
      "form": "fūtile",
      "tags": [
        "canonical"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "la",
        "2": "adjective form",
        "head": "fūtile"
      },
      "expansion": "fūtile",
      "name": "head"
    }
  ],
  "lang": "Latin",
  "lang_code": "la",
  "pos": "adj",
  "senses": [
    {
      "form_of": [
        {
          "word": "fūtilis"
        }
      ],
      "glosses": [
        "nominative/accusative/vocative neuter singular of fūtilis"
      ],
      "links": [
        [
          "fūtilis",
          "futilis#Latin"
        ]
      ],
      "tags": [
        "accusative",
        "form-of",
        "neuter",
        "nominative",
        "singular",
        "vocative"
      ]
    }
  ],
  "word": "futile"
}