"dumber" meaning in English

{
  "head_templates": [
    {
      "args": {
        "1": "en",
        "2": "comparative adjective"
      },
      "expansion": "dumber",
      "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"
        },
        {
          "_dis": "46 33 6 15",
          "kind": "other",
          "name": "Old Swedish entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        }
      ],
      "form_of": [
        {
          "extra": "more dumb",
          "word": "dumb"
        }
      ],
      "glosses": [
        "comparative form of dumb: more dumb"
      ],
      "id": "en-dumber-en-adj-MUfM1BHX",
      "links": [
        [
          "dumb",
          "dumb#English"
        ]
      ],
      "tags": [
        "comparative",
        "form-of"
      ]
    }
  ],
  "word": "dumber"
}

{
  "categories": [
    "Old Swedish adjectives",
    "Old Swedish entries with incorrect language header",
    "Old Swedish lemmas",
    "Old Swedish terms derived from Old Norse",
    "Old Swedish terms derived from Proto-Germanic",
    "Old Swedish terms inherited from Old Norse",
    "Old Swedish terms inherited from Proto-Germanic"
  ],
  "head_templates": [
    {
      "args": {
        "1": "en",
        "2": "comparative adjective"
      },
      "expansion": "dumber",
      "name": "head"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "adj",
  "senses": [
    {
      "categories": [
        "English comparative adjectives",
        "English entries with incorrect language header",
        "English non-lemma forms"
      ],
      "form_of": [
        {
          "extra": "more dumb",
          "word": "dumb"
        }
      ],
      "glosses": [
        "comparative form of dumb: more dumb"
      ],
      "links": [
        [
          "dumb",
          "dumb#English"
        ]
      ],
      "tags": [
        "comparative",
        "form-of"
      ]
    }
  ],
  "word": "dumber"
}