"一文不通" meaning in Japanese

{
  "forms": [
    {
      "form": "一文不通",
      "ruby": [
        [
          "一",
          "いち"
        ],
        [
          "文",
          "もん"
        ],
        [
          "不",
          "ふ"
        ],
        [
          "通",
          "つう"
        ]
      ],
      "tags": [
        "canonical"
      ]
    },
    {
      "form": "ichimon-futsū",
      "tags": [
        "romanization"
      ]
    },
    {
      "form": "itimonfutuu",
      "tags": [
        "romanization"
      ]
    },
    {
      "form": "いちもんふつう",
      "roman": "itimonfutuu",
      "tags": [
        "hiragana",
        "historical"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "いちもん-ふつう",
        "hhira": "いちもんふつう"
      },
      "expansion": "一(いち)文(もん)不(ふ)通(つう) • (ichimon-futsū) ^(←いちもんふつう (itimonfutuu)?)",
      "name": "ja-noun"
    }
  ],
  "lang": "Japanese",
  "lang_code": "ja",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Japanese entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Japanese links with redundant alt parameters",
          "parents": [
            "Links with redundant alt parameters",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Japanese links with redundant wikilinks",
          "parents": [
            "Links with redundant wikilinks",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Japanese terms with 4 kanji",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Japanese terms with multiple readings",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Japanese terms with redundant sortkeys",
          "parents": [
            "Terms with redundant sortkeys",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "ja",
          "name": "Language",
          "orig": "ja:Language",
          "parents": [
            "Communication",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "being totally illiterate"
      ],
      "id": "en-一文不通-ja-noun-vM1~DmZE",
      "links": [
        [
          "totally",
          "totally"
        ],
        [
          "illiterate",
          "illiterate"
        ]
      ],
      "synonyms": [
        {
          "roman": "ichimon-fuchi",
          "ruby": [
            [
              "一文不知",
              "いちもんふち"
            ]
          ],
          "word": "一文不知"
        }
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "[it͡ɕimõ̞ɰ̃ɸɯ̟t͡sɨː]"
    }
  ],
  "word": "一文不通"
}

{
  "forms": [
    {
      "form": "一文不通",
      "ruby": [
        [
          "一",
          "いち"
        ],
        [
          "文",
          "もん"
        ],
        [
          "不",
          "ふ"
        ],
        [
          "通",
          "つう"
        ]
      ],
      "tags": [
        "canonical"
      ]
    },
    {
      "form": "ichimon-futsū",
      "tags": [
        "romanization"
      ]
    },
    {
      "form": "itimonfutuu",
      "tags": [
        "romanization"
      ]
    },
    {
      "form": "いちもんふつう",
      "roman": "itimonfutuu",
      "tags": [
        "hiragana",
        "historical"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "いちもん-ふつう",
        "hhira": "いちもんふつう"
      },
      "expansion": "一(いち)文(もん)不(ふ)通(つう) • (ichimon-futsū) ^(←いちもんふつう (itimonfutuu)?)",
      "name": "ja-noun"
    }
  ],
  "lang": "Japanese",
  "lang_code": "ja",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "Japanese entries with incorrect language header",
        "Japanese lemmas",
        "Japanese links with redundant alt parameters",
        "Japanese links with redundant wikilinks",
        "Japanese nouns",
        "Japanese terms spelled with first grade kanji",
        "Japanese terms spelled with fourth grade kanji",
        "Japanese terms spelled with second grade kanji",
        "Japanese terms with 4 kanji",
        "Japanese terms with IPA pronunciation",
        "Japanese terms with IPA pronunciation missing pitch accent",
        "Japanese terms with multiple readings",
        "Japanese terms with redundant sortkeys",
        "Pages with 1 entry",
        "Pages with entries",
        "ja:Language"
      ],
      "glosses": [
        "being totally illiterate"
      ],
      "links": [
        [
          "totally",
          "totally"
        ],
        [
          "illiterate",
          "illiterate"
        ]
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "[it͡ɕimõ̞ɰ̃ɸɯ̟t͡sɨː]"
    }
  ],
  "synonyms": [
    {
      "roman": "ichimon-fuchi",
      "ruby": [
        [
          "一文不知",
          "いちもんふち"
        ]
      ],
      "word": "一文不知"
    }
  ],
  "word": "一文不通"
}

{
  "called_from": "parser/304",
  "msg": "HTML tag <span> not properly closed",
  "path": [
    "一文不通"
  ],
  "section": "Japanese",
  "subsection": "noun",
  "title": "一文不通",
  "trace": "started on line 2, detected on line 2"
}

{
  "called_from": "parser/1336",
  "msg": "no corresponding start tag found for </span>",
  "path": [
    "一文不通"
  ],
  "section": "Japanese",
  "subsection": "noun",
  "title": "一文不通",
  "trace": ""
}