"backpedaler" meaning in English

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "backpedal",
        "3": "er",
        "id2": "agent noun"
      },
      "expansion": "backpedal + -er",
      "name": "suf"
    }
  ],
  "etymology_text": "backpedal + -er",
  "forms": [
    {
      "form": "backpedalers",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "backpedaler (plural backpedalers)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
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        {
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          "name": "English terms suffixed with -er (agent noun)",
          "parents": [],
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          "kind": "topical",
          "langcode": "en",
          "name": "People",
          "orig": "en:People",
          "parents": [
            "Human",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "One who backpedals."
      ],
      "id": "en-backpedaler-en-noun-Edjvk2J7",
      "links": [
        [
          "backpedal",
          "backpedal"
        ]
      ],
      "raw_glosses": [
        "(American spelling) One who backpedals."
      ],
      "synonyms": [
        {
          "word": "backpedaller"
        }
      ],
      "tags": [
        "US"
      ]
    }
  ],
  "word": "backpedaler"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "backpedal",
        "3": "er",
        "id2": "agent noun"
      },
      "expansion": "backpedal + -er",
      "name": "suf"
    }
  ],
  "etymology_text": "backpedal + -er",
  "forms": [
    {
      "form": "backpedalers",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "backpedaler (plural backpedalers)",
      "name": "en-noun"
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  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
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        "American English forms",
        "English countable nouns",
        "English entries with incorrect language header",
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        "English lemmas",
        "English nouns",
        "English terms suffixed with -er (agent noun)",
        "en:People"
      ],
      "glosses": [
        "One who backpedals."
      ],
      "links": [
        [
          "backpedal",
          "backpedal"
        ]
      ],
      "raw_glosses": [
        "(American spelling) One who backpedals."
      ],
      "tags": [
        "US"
      ]
    }
  ],
  "synonyms": [
    {
      "word": "backpedaller"
    }
  ],
  "word": "backpedaler"
}