"imparable" meaning in Spanish

{
  "forms": [
    {
      "form": "imparables",
      "tags": [
        "feminine",
        "masculine",
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "imparable m or f (masculine and feminine plural imparables)",
      "name": "es-adj"
    }
  ],
  "hyphenation": [
    "im‧pa‧ra‧ble"
  ],
  "lang": "Spanish",
  "lang_code": "es",
  "pos": "adj",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Spanish entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        }
      ],
      "derived": [
        {
          "word": "imparablemente"
        }
      ],
      "glosses": [
        "unstoppable"
      ],
      "id": "en-imparable-es-adj-eczPqVpC",
      "links": [
        [
          "unstoppable",
          "unstoppable"
        ]
      ],
      "related": [
        {
          "word": "parar"
        }
      ],
      "synonyms": [
        {
          "word": "inatajable"
        }
      ],
      "tags": [
        "feminine",
        "masculine"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/impaˈɾable/"
    },
    {
      "ipa": "[ĩm.paˈɾa.β̞le]"
    },
    {
      "rhymes": "-able"
    }
  ],
  "word": "imparable"
}

{
  "derived": [
    {
      "word": "imparablemente"
    }
  ],
  "forms": [
    {
      "form": "imparables",
      "tags": [
        "feminine",
        "masculine",
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "imparable m or f (masculine and feminine plural imparables)",
      "name": "es-adj"
    }
  ],
  "hyphenation": [
    "im‧pa‧ra‧ble"
  ],
  "lang": "Spanish",
  "lang_code": "es",
  "pos": "adj",
  "related": [
    {
      "word": "parar"
    }
  ],
  "senses": [
    {
      "categories": [
        "Rhymes:Spanish/able",
        "Rhymes:Spanish/able/4 syllables",
        "Spanish 4-syllable words",
        "Spanish adjectives",
        "Spanish entries with incorrect language header",
        "Spanish epicene adjectives",
        "Spanish lemmas",
        "Spanish terms with IPA pronunciation"
      ],
      "glosses": [
        "unstoppable"
      ],
      "links": [
        [
          "unstoppable",
          "unstoppable"
        ]
      ],
      "synonyms": [
        {
          "word": "inatajable"
        }
      ],
      "tags": [
        "feminine",
        "masculine"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/impaˈɾable/"
    },
    {
      "ipa": "[ĩm.paˈɾa.β̞le]"
    },
    {
      "rhymes": "-able"
    }
  ],
  "word": "imparable"
}