"grouchiest" meaning in English

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "grouchy",
        "3": "-est",
        "nocat": "1"
      },
      "expansion": "grouchy + -est",
      "name": "af"
    }
  ],
  "etymology_text": "From grouchy + -est.",
  "head_templates": [
    {
      "args": {
        "1": "en",
        "2": "superlative adjective"
      },
      "expansion": "grouchiest",
      "name": "head"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "adj",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        }
      ],
      "form_of": [
        {
          "extra": "most grouchy",
          "word": "grouchy"
        }
      ],
      "glosses": [
        "superlative form of grouchy: most grouchy"
      ],
      "id": "en-grouchiest-en-adj-0Z0UagV5",
      "links": [
        [
          "grouchy",
          "grouchy#English"
        ]
      ],
      "tags": [
        "form-of",
        "superlative"
      ]
    }
  ],
  "word": "grouchiest"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "grouchy",
        "3": "-est",
        "nocat": "1"
      },
      "expansion": "grouchy + -est",
      "name": "af"
    }
  ],
  "etymology_text": "From grouchy + -est.",
  "head_templates": [
    {
      "args": {
        "1": "en",
        "2": "superlative adjective"
      },
      "expansion": "grouchiest",
      "name": "head"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "adj",
  "senses": [
    {
      "categories": [
        "English entries with incorrect language header",
        "English non-lemma forms",
        "English superlative adjectives",
        "Pages with 1 entry",
        "Pages with entries"
      ],
      "form_of": [
        {
          "extra": "most grouchy",
          "word": "grouchy"
        }
      ],
      "glosses": [
        "superlative form of grouchy: most grouchy"
      ],
      "links": [
        [
          "grouchy",
          "grouchy#English"
        ]
      ],
      "tags": [
        "form-of",
        "superlative"
      ]
    }
  ],
  "word": "grouchiest"
}