"невзначай" meaning in Russian

{
  "categories": [
    {
      "_dis": "0 0",
      "kind": "other",
      "name": "Pages with 1 entry",
      "parents": [],
      "source": "w+disamb"
    },
    {
      "_dis": "0 0",
      "kind": "other",
      "name": "Pages with entries",
      "parents": [],
      "source": "w+disamb"
    },
    {
      "_dis": "0 0",
      "kind": "other",
      "name": "Russian entries with incorrect language header",
      "parents": [
        "Entries with incorrect language header",
        "Entry maintenance"
      ],
      "source": "w+disamb"
    },
    {
      "_dis": "0 0",
      "kind": "other",
      "name": "Russian terms prefixed with вз-",
      "parents": [],
      "source": "w+disamb"
    },
    {
      "_dis": "0 0",
      "kind": "other",
      "name": "Russian terms prefixed with на-",
      "parents": [],
      "source": "w+disamb"
    },
    {
      "_dis": "0 0",
      "kind": "other",
      "name": "Russian terms prefixed with не-",
      "parents": [],
      "source": "w+disamb"
    }
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "ru",
        "2": "не-",
        "3": "вз-",
        "4": "на-",
        "5": "чаять",
        "alt4": "чай"
      },
      "expansion": "не- (ne-) + вз- (vz-) + на- (na-) + чай (čaj)",
      "name": "af"
    }
  ],
  "etymology_text": "Per Vasmer, не- (ne-) + вз- (vz-) + на- (na-) + чай (čaj).",
  "forms": [
    {
      "form": "невзнача́й",
      "tags": [
        "canonical"
      ]
    },
    {
      "form": "nevznačáj",
      "tags": [
        "romanization"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "невзнача́й"
      },
      "expansion": "невзнача́й • (nevznačáj)",
      "name": "ru-adv"
    }
  ],
  "lang": "Russian",
  "lang_code": "ru",
  "pos": "adv",
  "related": [
    {
      "_dis1": "0 0",
      "roman": "čájatʹ",
      "tags": [
        "imperfective"
      ],
      "word": "ча́ять"
    },
    {
      "_dis1": "0 0",
      "roman": "čájanije",
      "tags": [
        "neuter"
      ],
      "word": "ча́яние"
    },
    {
      "_dis1": "0 0",
      "roman": "čájannyj",
      "word": "ча́янный"
    },
    {
      "_dis1": "0 0",
      "roman": "nečájannyj",
      "word": "неча́янный"
    }
  ],
  "senses": [
    {
      "categories": [],
      "glosses": [
        "accidentally, by chance"
      ],
      "id": "en-невзначай-ru-adv-7DxcOA-G",
      "links": [
        [
          "accidentally",
          "accidentally"
        ],
        [
          "by chance",
          "by chance"
        ]
      ],
      "raw_glosses": [
        "(colloquial) accidentally, by chance"
      ],
      "tags": [
        "colloquial"
      ]
    },
    {
      "categories": [],
      "glosses": [
        "unintentionally"
      ],
      "id": "en-невзначай-ru-adv-5reSV7AU",
      "links": [
        [
          "unintentionally",
          "unintentionally"
        ]
      ],
      "raw_glosses": [
        "(colloquial) unintentionally"
      ],
      "tags": [
        "colloquial"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "[nʲɪvznɐˈt͡ɕæj]"
    }
  ],
  "word": "невзначай"
}

{
  "categories": [
    "Pages with 1 entry",
    "Pages with entries",
    "Russian 3-syllable words",
    "Russian adverbs",
    "Russian entries with incorrect language header",
    "Russian lemmas",
    "Russian terms prefixed with вз-",
    "Russian terms prefixed with на-",
    "Russian terms prefixed with не-",
    "Russian terms with IPA pronunciation"
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "ru",
        "2": "не-",
        "3": "вз-",
        "4": "на-",
        "5": "чаять",
        "alt4": "чай"
      },
      "expansion": "не- (ne-) + вз- (vz-) + на- (na-) + чай (čaj)",
      "name": "af"
    }
  ],
  "etymology_text": "Per Vasmer, не- (ne-) + вз- (vz-) + на- (na-) + чай (čaj).",
  "forms": [
    {
      "form": "невзнача́й",
      "tags": [
        "canonical"
      ]
    },
    {
      "form": "nevznačáj",
      "tags": [
        "romanization"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "невзнача́й"
      },
      "expansion": "невзнача́й • (nevznačáj)",
      "name": "ru-adv"
    }
  ],
  "lang": "Russian",
  "lang_code": "ru",
  "pos": "adv",
  "related": [
    {
      "roman": "čájatʹ",
      "tags": [
        "imperfective"
      ],
      "word": "ча́ять"
    },
    {
      "roman": "čájanije",
      "tags": [
        "neuter"
      ],
      "word": "ча́яние"
    },
    {
      "roman": "čájannyj",
      "word": "ча́янный"
    },
    {
      "roman": "nečájannyj",
      "word": "неча́янный"
    }
  ],
  "senses": [
    {
      "categories": [
        "Russian colloquialisms"
      ],
      "glosses": [
        "accidentally, by chance"
      ],
      "links": [
        [
          "accidentally",
          "accidentally"
        ],
        [
          "by chance",
          "by chance"
        ]
      ],
      "raw_glosses": [
        "(colloquial) accidentally, by chance"
      ],
      "tags": [
        "colloquial"
      ]
    },
    {
      "categories": [
        "Russian colloquialisms"
      ],
      "glosses": [
        "unintentionally"
      ],
      "links": [
        [
          "unintentionally",
          "unintentionally"
        ]
      ],
      "raw_glosses": [
        "(colloquial) unintentionally"
      ],
      "tags": [
        "colloquial"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "[nʲɪvznɐˈt͡ɕæj]"
    }
  ],
  "word": "невзначай"
}