"безболезненно" meaning in Russian

{
  "etymology_templates": [
    {
      "args": {
        "1": "ru",
        "2": "безболе́зненный",
        "3": "-о"
      },
      "expansion": "безболе́зненный (bezboléznennyj) + -о (-o)",
      "name": "af"
    }
  ],
  "etymology_text": "безболе́зненный (bezboléznennyj) + -о (-o)",
  "forms": [
    {
      "form": "безболе́зненно",
      "tags": [
        "canonical"
      ]
    },
    {
      "form": "bezboléznenno",
      "tags": [
        "romanization"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "безболе́зненно"
      },
      "expansion": "безболе́зненно • (bezboléznenno)",
      "name": "ru-adv"
    }
  ],
  "lang": "Russian",
  "lang_code": "ru",
  "pos": "adv",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Russian entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Russian terms suffixed with -о",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "painlessly (in a painless manner)"
      ],
      "id": "en-безболезненно-ru-adv-Xn2zXs4v",
      "links": [
        [
          "painlessly",
          "painlessly"
        ]
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "[bʲɪzbɐˈlʲezʲnʲɪn(ː)ə]"
    }
  ],
  "word": "безболезненно"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "ru",
        "2": "безболе́зненный",
        "3": "-о"
      },
      "expansion": "безболе́зненный (bezboléznennyj) + -о (-o)",
      "name": "af"
    }
  ],
  "etymology_text": "безболе́зненный (bezboléznennyj) + -о (-o)",
  "forms": [
    {
      "form": "безболе́зненно",
      "tags": [
        "canonical"
      ]
    },
    {
      "form": "bezboléznenno",
      "tags": [
        "romanization"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "безболе́зненно"
      },
      "expansion": "безболе́зненно • (bezboléznenno)",
      "name": "ru-adv"
    }
  ],
  "lang": "Russian",
  "lang_code": "ru",
  "pos": "adv",
  "senses": [
    {
      "categories": [
        "Russian 5-syllable words",
        "Russian adverbs",
        "Russian entries with incorrect language header",
        "Russian lemmas",
        "Russian terms suffixed with -о",
        "Russian terms with IPA pronunciation"
      ],
      "glosses": [
        "painlessly (in a painless manner)"
      ],
      "links": [
        [
          "painlessly",
          "painlessly"
        ]
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "[bʲɪzbɐˈlʲezʲnʲɪn(ː)ə]"
    }
  ],
  "word": "безболезненно"
}