"заднешком" meaning in Bulgarian

{
  "forms": [
    {
      "form": "заднешко́м",
      "tags": [
        "canonical"
      ]
    },
    {
      "form": "zadneškóm",
      "tags": [
        "romanization"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "заднешко́м",
        "2": "-"
      },
      "expansion": "заднешко́м • (zadneškóm) (not comparable)",
      "name": "bg-adv"
    }
  ],
  "lang": "Bulgarian",
  "lang_code": "bg",
  "pos": "adv",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Bulgarian entries with incorrect language header",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "back, backward, aback"
      ],
      "id": "en-заднешком-bg-adv-iQfglmIT",
      "links": [
        [
          "back",
          "back"
        ],
        [
          "backward",
          "backward"
        ],
        [
          "aback",
          "aback"
        ]
      ],
      "tags": [
        "not-comparable"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "[zɐdnɛʃˈkɔm]"
    },
    {
      "rhymes": "-ɔm"
    }
  ],
  "word": "заднешком"
}

{
  "forms": [
    {
      "form": "заднешко́м",
      "tags": [
        "canonical"
      ]
    },
    {
      "form": "zadneškóm",
      "tags": [
        "romanization"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "заднешко́м",
        "2": "-"
      },
      "expansion": "заднешко́м • (zadneškóm) (not comparable)",
      "name": "bg-adv"
    }
  ],
  "lang": "Bulgarian",
  "lang_code": "bg",
  "pos": "adv",
  "senses": [
    {
      "categories": [
        "Bulgarian 3-syllable words",
        "Bulgarian adverbs",
        "Bulgarian entries with incorrect language header",
        "Bulgarian lemmas",
        "Bulgarian terms with IPA pronunciation",
        "Bulgarian terms with audio pronunciation",
        "Bulgarian uncomparable adverbs",
        "Pages with 1 entry",
        "Pages with entries",
        "Rhymes:Bulgarian/ɔm",
        "Rhymes:Bulgarian/ɔm/3 syllables"
      ],
      "glosses": [
        "back, backward, aback"
      ],
      "links": [
        [
          "back",
          "back"
        ],
        [
          "backward",
          "backward"
        ],
        [
          "aback",
          "aback"
        ]
      ],
      "tags": [
        "not-comparable"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "[zɐdnɛʃˈkɔm]"
    },
    {
      "rhymes": "-ɔm"
    }
  ],
  "word": "заднешком"
}